Hiyokoi - Vol. 10 Ch. 41

[MangaDex]

 

[derqueue]

U serious girl? Meeting some random dudes for 20 seconds in the mall and take their advice for granted. Please grow some common sense.

 

[tantei_metal]

Well she assumed they were his friends, so I can see why she fell for it. But the real give away is that she has been in his room before, and if he really was a mechanics otaku, then she would have seen something then.