He is not with the other girls, he end up with just Kiriko. Her friend Yuka ends with the teacher Miho. And the third girl don't really mean anything, she was just here for the... "funny" part ( I think it was intended to be funny)
It is not a manga that should be read seriously, it's just a comedy, maybe a bad humour for some people, but that why I think the story might not seems "complete" .
This manga is old, from 1998 so I guess it didn't aged well haha
oh thank you I was just so confused in many parts like the two timing part I guess I should've know when the teacher and student were together like its normal it was comedy but I thought they were gonna developed like her confidence
is that really the end? what a waste of time... like is he still with the other girls they didn't really resolve anything at all first time giving a 1/5