Welcome To The University Of Love

From Liquid Passion:Aizome Riku enjoys napping on the school's roof, but when he falls from a tree tryng to climb down Kairi is there to catch him. The two become fast friends, but Kairi's three bodyguards who follow him everywhere soon grate on Riku's nerves. Can Kairi convince Riku that his 'like' is more than friends and capture his would-be uke's heart?