Cream Caramel Chocolate

From Aerandria Scans:

1) Cream Caramel Chocolate
Actually, Mikoto, a high school student who lives alone in an old apartment, just started dating Murakami-san, a university student who lives in the next room. Living under one roof, she's happy that she can be lovey-dovey every day with her boyfriend, but reality is somewhat different...

2) Springtime Do Re Mi

3) A Happy Heart
Fukuzawa Makoto is the chairman of the discipline committee. Shiba Emi has a super big crush on him so she attempts to get his attention by breaking the school dress code.

4) To Pursuit Happiness