Why

You sound like you've read only 2 last chapter of the whole manga

I think its for the gag, this manga may have a deep and serious topics such as war and all but the characters have their own kind unseriousness

Nope I read the whole manga, also anime and all movies

Gags are supposed to be funny but they are just creepy bro

its funny if u didnt take it seriously.. like when people said they wanna bomb their school so the exam cancel or etc

Those are funny but incest and stalking aren't

I'm so with you. Some ppl in this comment sections are showing their true colours

its not incest.. yuri not liking yor romantically.. u can see in latest one.. he is stalking to keep yor safe.. and he doesnt do it often as he still dont know the real identity of yor.. please dont take their relationship to incest as both of them not sexualizing each other.. yuri just being a protective brother as he know how much yor sacrifice for him when he is a kid.. the comedy is how he is react to yor cooking and how yor go out with him thats all.. he just happy how yor take. a time with him..

Yes, someone said it right Tengks, bud