おしりの日に上げる絵を探してたら見つけた過去絵を
リニューアルしてみました。
1年でかなり絵が変わった気がする。気のせいかもしれないけど。
元絵はここ pixiv #94391094 "»":[/posts?tags=pixiv%3A94391094]
3枚目のと同じです。

I was looking for a picture to post for Butt Day and found a past picture and renewed it. I feel like my pictures have changed a lot over a year. Perhaps it's my imagination though.
Original picture is here: pixiv #94391094 "»":[/posts?tags=pixiv%3A94391094]
The 3rd one in this set is the same as that one.