She might be a bit weird, but she's super cute, he gets along with her, and he was even ready to risk life and limb to defend her, so he should at least try to date her. It's not like he would get such offers every day. Probably.
This is a new low from the Weekly Champion. Story apart (and the obvious feet fetish - fan service/echii focus), the art is kind of....unpolish. The girl is cute, so already a 10/10 under japanese standars, i guess...
I see the author fixed her bulge from the oneshot. But art is terrible, it's like he bothered only to draw girl and other characters are left to a child or really bad assistant.