It's Called Love is a romantic shoujo manga that consists of 5 short stories. Each story is done by a different author but in each you will experience the various expressions of love such as heartbreak, first kiss, etc.

1) To Be Your Number One by Ayu Watanabe

2) Sakura Tears by Keiko Suenobu

3) Special by Ikeda Yukio

4) Summer Love by Tsugumi

5) The Force of Dreams by Harui Yuna

Collection of one shots:
Kimi ga Suki Plus Pink Passion Version
After going out for only a year, their relationship is already in trouble?
Anata Nante. Kirai
He’s such a frivolous person. Even so, he’s still the one I care about~?!
Boykare Boys’ Collection S Seitokaichou
I’ve become a toy for a super S senpai, but I can’t defy him…
Shitsuji-sama to Himegoto ~Otona no Tame ni Atsui Chocolate~
Eri wants to give the butler a Valentine’s chocolate that he will like, but…?!
Akai High Heel
A good looking shop manager with spectacles… Just looking at his serious facial expressions turns me on.
(Source: Midnight Scans)