Read manga: Choukyoushi (Fujii Mitsuru)

manga
Summary:

From JShoujo Scans:1. Animal TrainerSawa 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 ForeverAfter one of three friends dies in a suspicious way, secrets are revealed.... who is the culprit?3. The Perfect Day For Moving To The Big CityMinporin, a 'country bumpkin' from Aomori starts attending a university near Tokyo. Unfortunately for her, a handsome boy she doesn't like attaches himself to her.....