Nikaido Kaho is a daughter of a rich family and her whole life everyone's been nice to her. When moving to her new high school dormitory, she almost gets hit by a truck but is saved by a boy. It's love at first sight for Kaho but when asking him his name, he tells her she's weird. Kaho is shocked since it's the first time anyone's ever said mean things to her. Soon enough, she finds out that the boy who saved her lives in the same dormitory and so she bravely confesses her love. The boy says his name is Kanade and agrees to go out with her. Unfortunately, the following day Kaho finds out that her first boyfriend is a 5th grader.

In the fifth unit of the special police bureau lies a group of special individuals known as the “SAKURA”. Formed for the purpose of carrying out secret missions, they gave up their nationality, erased their past and concealed their real identities. There will be no salvation for the “SAKURA” who failed in his mission, except for their one and only “Messiah” – the only existence that can pull them back from the path of death…

From inmeliora:

Chikanari's kouhai, Kamo, is head over heels in love with him, to the point where Kamo does everything in his power to be "together" with Chikanari - including changing his hair to have the same style and color, and even getting hurt in the same places. Chikanari's view of love is completely different, so how will these two continue their relationship despite all the odds?