At first, Takayuki Narumi is befriended by Mitsuki Hayase only becauseMitsuki's best friend, Haruka Suzumiya has a crush on him; howeversince then, Takayuki, his pal Shinji Taira, and Mitsuki have grown tobe the best of friends. Then one day, Haruka confesses to Takayuki herlove for him. Not wanting to hurt her feelings, Takayuki agrees to goout with her. After a few incidents, their relationship gets intimate,even while Takayuki and Mitsuki begin to realize their feelings foreach other. But suddenly, when tragedy strikes, things are never thesame for these four friends again.