diff --git a/README.md b/README.md
index e7f88cf..8065643 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
 
+- [288th, 2026-05-23](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/560), joined 2
 - [287th, 2026-05-16](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/559), joined 4
 - [286th, 2026-05-09](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/555), joined 3
 - [285th, 2026-05-02](https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/550), joined 3
@@ -510,8 +511,8 @@ and participate more than 30 online meetup, get the chicken gifticon.
 
 |Ranking|Name|Count|
 |-------|----|-----|
-|1|[Kim Jong Feel](https://github.com/jongfeel/)|20|
-|2|[최지윤](https://github.com/chichoon/)|18|
+|1|[Kim Jong Feel](https://github.com/jongfeel/)|21|
+|2|[최지윤](https://github.com/chichoon/)|19|
 |3|[TaeWon](https://github.com/ytw9699/)|8|
 |4|[Yeshin Lee](https://github.com/yeslee-v/)|7|
 |5|[LeeDaYeon](https://github.com/ErigoLee/)|7|
@@ -525,8 +526,8 @@ and participate more than 30 online meetup, get the chicken gifticon.
 
 |Ranking|Name|Count|
 |-------|----|-----|
-|1|[jongfeel](https://github.com/jongfeel/)|281|
-|2|[최지윤](https://github.com/chichoon)|188|
+|1|[jongfeel](https://github.com/jongfeel/)|282|
+|2|[최지윤](https://github.com/chichoon)|189|
 |3|[yeslee-v](https://github.com/yeslee-v/)|110|
 |4|[TaeWon](https://github.com/ytw9699/)|52|
 |5|[Jeongan Lee](https://github.com/fkdl0048/)|51|
diff --git a/Stamp/README.md b/Stamp/README.md
index 89d30da..69ec9f2 100644
--- a/Stamp/README.md
+++ b/Stamp/README.md
@@ -30,10 +30,10 @@
 
 | 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> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/543#issuecomment-4227693413"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/546#issuecomment-4272339411"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/547#issuecomment-4317434629"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/550#issuecomment-4362586592"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/555#issuecomment-4410993725"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/559#issuecomment-4465020750"><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> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/546#issuecomment-4272339411"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/547#issuecomment-4317434629"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/550#issuecomment-4362586592"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/555#issuecomment-4410993725"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/559#issuecomment-4465020750"><img src="approved_2021_2Q.png"/></a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/560#issuecomment-4470757921"><img src="approved_2021_2Q.png"/></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> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/546#issuecomment-4272524861"><img src="approved_2021_2Q.png"/>book 9/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/547#issuecomment-4317383328"><img src="approved_2021_2Q.png"/>book 10/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/550#issuecomment-4362807729"><img src="approved_2021_2Q.png"/><img src="approved_2021_2Q.png"/><img src="NPayPoint5000.png"/>book 11/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/555#issuecomment-4411284938"><img src="approved_2021_2Q.png"/><img src="approved_2021_2Q.png"/>book 12/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/559#issuecomment-4465048686"><img src="approved_2021_2Q.png"/>book 13/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/560#issuecomment-4524019410"><img src="approved_2021_2Q.png"/><img src="NPayPoint5000.png"/><img src="approved_2021_2Q.png"/>book 14/20</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> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/546#issuecomment-4272296456"><img src="approved_2021_2Q.png"/>book 19/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/547#issuecomment-4317378362"><img src="approved_2021_2Q.png"/>book 20/20</a> | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/559#issuecomment-4464969264"><img src="approved_2021_2Q.png"/>book 1/20</a> | | | | | | |
 | [loginshin](https://github.com/loginshin/) | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/546#issuecomment-4272612365"><img src="approved_2021_2Q.png"/>book 2/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/547#issuecomment-4317372097"><img src="approved_2021_2Q.png"/><img src="NPayPoint5000.png"/>book 3/20</a> | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/555#issuecomment-4411276245"><img src="approved_2021_2Q.png"/><img src="approved_2021_2Q.png"/>book 4/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/559#issuecomment-4465028699"><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> | <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> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/546#issuecomment-4272524861"><img src="approved_2021_2Q.png"/>book 9/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/547#issuecomment-4317383328"><img src="approved_2021_2Q.png"/>book 10/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/550#issuecomment-4362807729"><img src="approved_2021_2Q.png"/><img src="approved_2021_2Q.png"/><img src="NPayPoint5000.png"/>book 11/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/555#issuecomment-4411284938"><img src="approved_2021_2Q.png"/><img src="approved_2021_2Q.png"/>book 12/20</a> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/559#issuecomment-4465048686"><img src="approved_2021_2Q.png"/>book 13/20</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> | | | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/550#issuecomment-4362434150"><img src="approved_2021_2Q.png"/><img src="approved_2021_2Q.png"/>book 1/20</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> | <a href="https://github.com/ThinkAboutSoftware/OnlineSelfCodingGroup/issues/546#issuecomment-4272303160"><img src="approved_2021_2Q.png"/>book 9/20</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> | | | | | | | | | | | | |