Ahh yes, these last two chapters are a trash for me. A garbage.
A kid says: "yeah go ahead, have fun with your classmates I'll help you when you need it"
Then she goes "will you, really? Thanks!"
And I expected him to go with her or support her from nearby. After all she can have blood attack now or in a few years so if he steeled himself, well, then he should like make an excuse that she's sick and in case of "sickness attack" a family member needs to be nearby to give her medicine and that's why he'll be with her even during their girl's talk... Then one day she looks pale, she feels strange looking at him (his neck) but instead of saying anything or him checking her in any way they just part their way and guess what did happen? She succ a nearby girl and actually his support is limited to packing a dead body to a nearby suitcase. Great! What would you expect from a kid anyway? Oh wait! Except he's almost in high school so at least a little expectations are normal.
It's like "don't worry, if you get preganante we will get married and be happy" and when she's actually pregennte he goes "wh-wh-wh-what a-a-are w-we g-g-gonna do now!?"
I feel like dropping it now but I'll wait for a one more chapter or two.
I think the only thing left for this manga is to turn into a shounen-battle manga and I hope I'm not right.