Heh Jun's missing out!
Say how old is this doujin?

Say how old is this doujin?

Artists usually write the date of publication on the last page. In this case, 2010/12/31.

last edited at May 17, 2021 11:27AM

Sometimes I really like super out-of-character stuff like this because it's either a) absurd to the point of being hilarious or b) funny to imagine that the characters are actually like this "off-screen"

I like that Yui (of all people) carefully explained things to Ui, and made sure she was comfortable the whole time. Yui finally acts like a proper big sister, and it's in an ero doujin. -_-