From Renta!:

My childhood friend is...... the ''campus princess''!? On returning to his hometown after a few years' absence, Chihiro Nakamura is reunited with his best friend from childhood, Yui Amekura. He's excited to see Yui, who has matured beyond recognition. While thrown off by Yui's strange allure, Chihiro's looking forward to a fun-filled school life with his old friend. On the day of his transfer, among the blooming cherry blossoms...... Chihiro can't calm his pounding heart as Yui turns toward him. Chihiro reaches out his hand...... ''Keep your hands off him, asshole!'' It turns out Yui and his alluring aura have been causing mayhem at his all-boys academy. Yui's earned the title of ''campus princess'' and is protected by a team of bodyguards!! What will become of Chihiro's fun school life with Yui? And of this throbbing in his chest......!? This is a pure love story between a faithful, caring guy and his hot-but-oblivious childhood friend!

from Renta!