Fujisaki Rin

Rin is a modest, caring girl with large breasts who's known as "The #1 Bridal Choice". Although her personality is the opposite of Sakura's, they are best friends and can often be found together. As a result she often finds her breasts being groped by Sakura. She is as interested in romance as any other girl, but because she's so meek it's hard for her to take initiative.

From MangaGamer