Responses
Its a uterus. He is pregnant.
yesss that's my current speculation rnnn. In mpregs and mpreg pornos that symbol was used and even in magical girl pornos it's there too. That's why there's a 50% chance that this thing might end up with mpregg
I think the tattoo was the sign that kouichi became the bride of caius , just my guess (o_O)