Choukyoushi (FUJII Mitsuru)

From JShoujo Scans:

1. Animal Trainer

Sawa has been going out with Manabu for almost a year. He's kind, gentle, and giving. She has no complaints, seeing as how he's the perfect gentleman, and she figures that if they continue to date, they'll eventually end up marrying. One day, Manabu takes her out to a bar, where he introduces her to a friend of his, who turns out to be someone she used to know back in college. On her taxi ride back home, she finds that she took her former classmate's cellphone by mistake. He asks if he can come pick it up at her apartment, and when he arrives...

2. Friends Forever

Chiaki, Yui and Mai were childhood friends that stayed close, but Yui's death throws everything into chaos. Chiaki is determined to discover the truth, if it was suicide, murder, or something much more disturbing.

3. The Perfect Day For Moving To The Big City

College student Miho is new to Tokyo, a bit lonely, and glad to have found a friend in the beautiful Youko. Then Miho attracts the attention of Tobi, a handsome sempai that Youko has a crush on. Miho loses her friend but now Tobi won't leave his fun new "toy" alone!