Hmm I just realised one suspicious thing. On the flashback when she said "welcome home" her reasoning is that she do it out of habit. That means before the whole thing she is living with someone. I wonder what happened to them.
I hoped that the girls were the same person and she fabricate the hikikomori situation because she was feeling guilty and couldn't meet with him (and continues to lie because to embarrassed or something). But no, we have triangle/harem shit instead...
looks like author constructs a little harem. Bruh
I wish hikkomori to be real fat and scary. For the great justice
@Akikako well, in chapter one he meets this girl somewhere near the college, then he runs away, I suppose real fast, and at home hikkomori already awaits him.
@justforthelulz little do we know he had his whole isekai adventure and came back but lost his memory and that girl in the wall is the elf princess he promised to marry