
That little girl is Chizu from Sorenari ni Shinken nandesu....right
http://www.mangago.zone/read-manga/ki_ga_au_to_iu_koto_wa/uu/ki_ga_au_to_iu_koto_wa-chapter-1.2/15/

The 1st couple were so so. Ryousuke did a 180 way to fast, I mean there was no hint then he loves Kaeda.
The 2nd couple characters just felt fake. You only got a little of them in the first story but enough to get a feel for their personalities. The contrast between their personality from one story to the next was too great for me. Come on how came you come to the school of the guy you've been in love with for the last 10 years and get f***ed by a stranger on the first day. I'm sorry I felt Zono was a ass and a hypocrite when called the others “ desperately selfish” when he himself was just a selfish.

ryousuke didnt change he loved kaede from the beginning. he just noticed too late. both of them feel in love with each other first day they met :)

i dont care second couple but i feel in love with first couple <333
http://www.mangago.zone/read-manga/ikujinashi_no_koi/uu/ikujinashi_no_koi-chapter-4
It literally says the authors name on the picture: https://www.mangaupdates.com/series.html?id=147873
I've gotten so used to it not saying it that I didn't even notice . Thx!