diff --git a/README.md b/README.md
index 6e54ece..0cda9bf 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,7 @@ Join link: [Google meet](https://meet.google.com/jyx-mxnq-kpk)
 
 ## 2026 2Q meetup list
 
+- [282th, 2026-04-11](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/543), joined 5
 - [281th, 2026-04-04](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/542), joined 3
 
 ## 2026 1Q meetup list
@@ -504,26 +505,27 @@ and participate more than 30 online meetup, get the chicken gifticon.
 
 |Ranking|Name|Count|
 |-------|----|-----|
-|1|[Kim Jong Feel](https://github.com/jongfeel/)|14|
-|2|[최지윤](https://github.com/chichoon/)|12|
+|1|[Kim Jong Feel](https://github.com/jongfeel/)|15|
+|2|[최지윤](https://github.com/chichoon/)|13|
 |3|[Yeshin Lee](https://github.com/yeslee-v/)|7|
-|4|[TaeWon](https://github.com/ytw9699/)|6|
-|5|[LeeDaYeon](https://github.com/ErigoLee/)|5|
+|4|[TaeWon](https://github.com/ytw9699/)|7|
+|5|[LeeDaYeon](https://github.com/ErigoLee/)|6|
 |6|[Daewon Paeng](https://github.com/fora22/)|1|
 |7|[ARi](https://github.com/hyunhyee/)|1|
 |8|[Harry Ho](https://github.com/hemil0102/)|1|
 |9|[loginshin](https://github.com/loginshin/)|1|
+|10|[Byeongguk Ahn](https://github.com/nonoaa/)|1|
 
 ### All from first to present
 
 |Ranking|Name|Count|
 |-------|----|-----|
-|1|[jongfeel](https://github.com/jongfeel/)|275|
-|2|[최지윤](https://github.com/chichoon)|182|
+|1|[jongfeel](https://github.com/jongfeel/)|276|
+|2|[최지윤](https://github.com/chichoon)|183|
 |3|[yeslee-v](https://github.com/yeslee-v/)|110|
 |4|[Jeongan Lee](https://github.com/fkdl0048/)|51|
-|5|[TaeWon](https://github.com/ytw9699/)|50|
-|6|[Byeongguk Ahn](https://github.com/nonoaa/)|37|
+|5|[TaeWon](https://github.com/ytw9699/)|51|
+|6|[Byeongguk Ahn](https://github.com/nonoaa/)|38|
 |7|[Joseph-Cha](https://github.com/Joseph-Cha/)|34|
 |8|[hyuncho](https://github.com/aquamagic9/)|33|
 |9|[hi-hyein](https://github.com/hi-hyein/)|30|
@@ -534,7 +536,7 @@ 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|[LeeDaYeon](https://github.com/ErigoLee/)|18|
+|17|[LeeDaYeon](https://github.com/ErigoLee/)|19|
 |18|[TaeHyoungKwon](https://github.com/TaeHyoungKwon/)|17|
 |19|[soo:bak](https://github.com/soo-bak)|15|
 |20|[yoonucho](https://github.com/yoonucho/)|14|
diff --git a/Stamp/README.md b/Stamp/README.md
index b307654..e74d800 100644
--- a/Stamp/README.md
+++ b/Stamp/README.md
@@ -26,9 +26,12 @@
 
 | Name | 04-04 (281th) | 04-11 (282th) | 04-18 (283th) | 04-25 (284th) | 05-02 (285th) | 05-09 (286th) | 05-16 (287th) | 05-23 (288th) | 05-30 (289th) | 06-06 (290th) | 06-13 (291th) | 06-20 (292th) | 06-27 (293th) |
 |-|-|-|-|-|-|-|-|-|-|-|-|-|-|
-| [Kim Jong Feel](https://github.com/jongfeel/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/542#issuecomment-4185964313"><img src="approved_2021_2Q.png"/></a> | | | | | | | | | | | | |
+| [Kim Jong Feel](https://github.com/jongfeel/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/542#issuecomment-4185964313"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/543#issuecomment-4227693413"><img src="approved_2021_2Q.png"/></a> | | | | | | | | | | | |
+| [Byeongguk Ahn](https://github.com/nonoaa/) | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/543#issuecomment-4227599484"><img src="approved_2021_2Q.png"/><img src="Starbucks_americano.JPG"/>book 18/20</a> | | | | | | | | | | | |
+| [TaeWon](https://github.com/ytw9699/) | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/543#issuecomment-4227622726"><img src="approved_2021_2Q.png"/>book 20/20</a> | | | | | | | | | | | |
+| [LeeDaYeon](https://github.com/ErigoLee/) | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/543#issuecomment-4227654402"><img src="approved_2021_2Q.png"/>book 8/20</a> | | | | | | | | | | | |
+| [최지윤](https://github.com/chichoon) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/542#issuecomment-4186186117"><img src="approved_2021_2Q.png"/><img src="approved_2021_2Q.png"/>book 7/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/543#issuecomment-4228062623"><img src="approved_2021_2Q.png"/><img src="Starbucks_americano.JPG"/>book 8/20</a> | | | | | | | | | | | |
 | [Yeshin Lee](https://github.com/yeslee-v/) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/542#issuecomment-4183362648"><img src="approved_2021_2Q.png"/><img src="Starbucks_americano.JPG"/><img src="approved_2021_2Q.png"/>book 5/20</a> | | | | | | | | | | | | |
-| [최지윤](https://github.com/chichoon) | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/542#issuecomment-4186186117"><img src="approved_2021_2Q.png"/><img src="approved_2021_2Q.png"/>book 7/20</a> | | | | | | | | | | | | |
 
 ### 2026 1Q, 01-03 (268th) ~ 03-28 (280th)