@lalala I heard that in the novel, Sejin's older brother used to forced his dck at Sejin's mouth whenever he helps him to bathe. But I think it's the artist's decision not to drew that because of how disgusting it was for the viewers.
Comment by Sprout on lalala
2 Replies
@Sprout ok 
@Sprout there's much more in the novel but I hope we won't see it in detail