
yeah in some places in japan getting it on with your sister is pretty "acceptable" i don't know if i'm 100% correct but this is also just based on the mangas i've read and from jp people I've talked to (also, in my country there are also some place that are okay with getting it on with your cousin ) and i'm not gonna talk about the age thing considering its japan but yeah. the cousin thing made everything worse lmao

no, your reaction is totally valid. Especially since it gets mentioned a couple times later on and it would've been very easy to just not make the two of them related.
I had to take a small break as well, but I decided since this is fictional anyway, I might as well decide for myself that they aren't related

Well that scalated quickly, Jesus Christ.
But yeah, in Japan you can marry your first degree cousin, but your Sister is a different issue hahahaha.
Seriously, is creepy! Specially since que thought it was okay because Aki was sexy (by basically doing nothing) , theres nothing more creepy than being seen just as a sex object....
I'm rereading this and why are we just brushing over the fact that Aki's first time with a guy was with his cousin!! When he was 16!! Tomoharu even mentioned how Aki looks like he was in middle school in the picture. Like imagine (as his cousin put it) "seducing" a minor you are biologically related to because he's "sexy"
I have to pretend this didn't happen