diff --git a/README.md b/README.md
index 3268ef8..899ae48 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,8 @@ Join link: [Google meet](https://meet.google.com/jyx-mxnq-kpk)
 
 ## 2026 1Q meetup list
 
-- [277th, 2026-03-07](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/530), will be open
+- [278th, 2026-03-14](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/531), will be open
+- [277th, 2026-03-07](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/530), joined 5
 - [276th, 2026-02-28](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/528), joined 2
 - [275th, 2026-02-21](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/527), joined 2
 - [274th, 2026-02-14](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/525), joined 4
@@ -492,22 +493,23 @@ and participate more than 30 online meetup, get the chicken gifticon.
 
 |Ranking|Name|Count|
 |-------|----|-----|
-|1|[Kim Jong Feel](https://github.com/jongfeel/)|9|
-|2|[최지윤](https://github.com/chichoon/)|9|
+|1|[Kim Jong Feel](https://github.com/jongfeel/)|10|
+|2|[최지윤](https://github.com/chichoon/)|10|
 |3|[Yeshin Lee](https://github.com/yeslee-v/)|6|
-|4|[LeeDaYeon](https://github.com/ErigoLee/)|4|
-|5|[TaeWon](https://github.com/ytw9699/)|3|
+|4|[LeeDaYeon](https://github.com/ErigoLee/)|5|
+|5|[TaeWon](https://github.com/ytw9699/)|4|
 |6|[Daewon Paeng](https://github.com/fora22/)|1|
+|7|[ARi](https://github.com/hyunhyee/)|1|
 
 ### All from first to present
 
 |Ranking|Name|Count|
 |-------|----|-----|
-|1|[jongfeel](https://github.com/jongfeel/)|270|
-|2|[최지윤](https://github.com/chichoon)|179|
+|1|[jongfeel](https://github.com/jongfeel/)|271|
+|2|[최지윤](https://github.com/chichoon)|180|
 |3|[yeslee-v](https://github.com/yeslee-v/)|109|
 |4|[Jeongan Lee](https://github.com/fkdl0048/)|51|
-|5|[TaeWon](https://github.com/ytw9699/)|47|
+|5|[TaeWon](https://github.com/ytw9699/)|48|
 |6|[Byeongguk Ahn](https://github.com/nonoaa/)|37|
 |7|[Joseph-Cha](https://github.com/Joseph-Cha/)|34|
 |8|[hyuncho](https://github.com/aquamagic9/)|33|
@@ -519,13 +521,13 @@ and participate more than 30 online meetup, get the chicken gifticon.
 |14|[wjrmffldrhrl](https://github.com/wjrmffldrhrl/)|20|
 |15|[Daewon Paeng](https://github.com/fora22/)|20|
 |16|[exgs](https://github.com/exgs)|19|
-|17|[TaeHyoungKwon](https://github.com/TaeHyoungKwon/)|17|
-|18|[LeeDaYeon](https://github.com/ErigoLee/)|17|
+|17|[LeeDaYeon](https://github.com/ErigoLee/)|18|
+|18|[TaeHyoungKwon](https://github.com/TaeHyoungKwon/)|17|
 |19|[soo:bak](https://github.com/soo-bak)|15|
 |20|[yoonucho](https://github.com/yoonucho/)|14|
 |21|[wisdom08](https://github.com/wisdom08/)|14|
-|22|[junmokang](https://github.com/moaoh)|13|
-|23|[ARi](https://github.com/hyunhyee/)|13|
+|22|[ARi](https://github.com/hyunhyee/)|14|
+|23|[junmokang](https://github.com/moaoh)|13|
 |24|[Jiyun Yun](https://github.com/jeeyn)|12|
 |25|[ShimWooJeong](https://github.com/ShimWooJeong/)|11|
 |26|[ellen310](https://github.com/ellen310/)|11|
diff --git a/Stamp/README.md b/Stamp/README.md
index cddaf22..5950c07 100644
--- a/Stamp/README.md
+++ b/Stamp/README.md
@@ -26,11 +26,12 @@
 
 | Name | 01-03 (268th) | 01-10 (269th) | 01-17 (270th) | 01-24 (271th) | 01-31 (272th) | 02-07 (273th) | 02-14 (274th) | 02-21 (275th) | 02-28 (276th) | 03-07 (277th) | 03-14 (278th) | 03-21 (279th) | 03-28 (280th) |
 |-|-|-|-|-|-|-|-|-|-|-|-|-|-|
-| [Kim Jong Feel](https://github.com/jongfeel/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/514#issuecomment-3706592905"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/515#issuecomment-3731404198"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/517#issuecomment-3762491965"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/518#issuecomment-3793377941"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/519#issuecomment-3827142452"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/524#issuecomment-3863335319"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/525#issuecomment-3900442926"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/527#issuecomment-3937918033"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/528#issuecomment-3976025335"><img src="approved_1Q.png"/></a> | 
-| [최지윤](https://github.com/chichoon) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/514#issuecomment-3706579591"><img src="approved_1Q.png"/>book 16/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/515#issuecomment-3726416555"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 17/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/517#issuecomment-3748315626"><img src="approved_1Q.png"/>book 18/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/518#issuecomment-3793340101"><img src="approved_1Q.png"/>book 19/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/519#issuecomment-3802717566"><img src="approved_1Q.png"/>book 20/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/524#issuecomment-3863284869"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/><img src="approved_1Q.png"/>book 1/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/525#issuecomment-3900425233"><img src="approved_1Q.png"/>book 2/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/527#issuecomment-3937871053"><img src="approved_1Q.png"/><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 3/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/528#issuecomment-3948929982"><img src="approved_1Q.png"/><img src="approved_1Q.png"/>book 4/20</a> |  
+| [Kim Jong Feel](https://github.com/jongfeel/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/514#issuecomment-3706592905"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/515#issuecomment-3731404198"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/517#issuecomment-3762491965"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/518#issuecomment-3793377941"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/519#issuecomment-3827142452"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/524#issuecomment-3863335319"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/525#issuecomment-3900442926"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/527#issuecomment-3937918033"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/528#issuecomment-3976025335"><img src="approved_1Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/530#issuecomment-4015188160"><img src="approved_1Q.png"/></a> | 
+| [최지윤](https://github.com/chichoon) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/514#issuecomment-3706579591"><img src="approved_1Q.png"/>book 16/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/515#issuecomment-3726416555"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 17/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/517#issuecomment-3748315626"><img src="approved_1Q.png"/>book 18/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/518#issuecomment-3793340101"><img src="approved_1Q.png"/>book 19/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/519#issuecomment-3802717566"><img src="approved_1Q.png"/>book 20/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/524#issuecomment-3863284869"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/><img src="approved_1Q.png"/>book 1/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/525#issuecomment-3900425233"><img src="approved_1Q.png"/>book 2/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/527#issuecomment-3937871053"><img src="approved_1Q.png"/><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 3/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/528#issuecomment-3948929982"><img src="approved_1Q.png"/><img src="approved_1Q.png"/>book 4/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/530#issuecomment-4015429862"><img src="approved_1Q.png"/>book 5/20</a> |  
+| [LeeDaYeon](https://github.com/ErigoLee/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/514#issuecomment-3706578972"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 3/20</a> | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/518#issuecomment-3793343060"><img src="approved_1Q.png"/>book 4/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/519#issuecomment-3827095902"><img src="approved_1Q.png"/>book 5/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/525#issuecomment-3900394490"><img src="approved_1Q.png"/>book 6/20</a> | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/530#issuecomment-4015090784"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 7/20</a> |
+| [TaeWon](https://github.com/ytw9699/) | | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/518#issuecomment-3793606675"><img src="approved_1Q.png"/>book 15/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/519#issuecomment-3827006937"><img src="approved_1Q.png"/>book 16/20</a> | | | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/530#issuecomment-4015148739"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 17/20</a> | 
+| [ARi](https://github.com/hyunhyee/) | | | | | | | | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/530#issuecomment-4015211318"><img src="approved_1Q.png"/>book 2/20</a> | 
 | [Yeshin Lee](https://github.com/yeslee-v/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/514#issuecomment-3705171107"><img src="approved_1Q.png"/>book 19/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/515#issuecomment-3731338037"><img src="approved_1Q.png"/>book 20/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/515#issuecomment-3731338037"><img src="approved_1Q.png"/>book 1/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/519#issuecomment-3823789891"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 2/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/524#issuecomment-3863328596"><img src="approved_1Q.png"/><img src="approved_1Q.png"/>book 3/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/525#issuecomment-3900498865"><img src="approved_1Q.png"/>book 4/20</a> | 
-| [LeeDaYeon](https://github.com/ErigoLee/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/514#issuecomment-3706578972"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 3/20</a> | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/518#issuecomment-3793343060"><img src="approved_1Q.png"/>book 4/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/519#issuecomment-3827095902"><img src="approved_1Q.png"/>book 5/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/525#issuecomment-3900394490"><img src="approved_1Q.png"/>book 6/20</a> |
-| [TaeWon](https://github.com/ytw9699/) | | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/518#issuecomment-3793606675"><img src="approved_1Q.png"/>book 15/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/519#issuecomment-3827006937"><img src="approved_1Q.png"/>book 16/20</a> | 
 | [Daewon Paeng](https://github.com/fora22/) | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/515#issuecomment-3728093558"><img src="approved_1Q.png"/><img src="Starbucks_americano.JPG"/>book 1/20</a> | 
 
 ### 2025 4Q, 10-04 (255th) ~ 12-27 (267th)