Koi toka, Kiss toka, Karada toka.

Sasa, the only daughter of a veterinarian, has always had a crush on a boy. She follows him and enrolls in the same high school, only to find out that he is actually an outrageous playboy!

(Source: Shogakukan, translated)

Included one-shots:
Volume 2: Chicchana Kemono wo Hiroimashita.
Volume 3: Koibito Gokko
Volume 4: Hajimari no Ao, Shiritai Kimochi.