When he was six years old, a cup of vanilla milkshake deceived Heizi's main soul, leaving only the incomplete Heizi working alone and stubbornly in the gloomy loneliness. Until, there was light. There are some things that you know the ending from the beginning, but you still can't help but draw moths to the flame. Finally, the distance caused by the congenital conditions became wider and wider, and they could no longer catch up with the light. Even if he is unwilling, he is powerless. When the shadow began to dim, the main soul returned. How will the real Kuroko spend his youth full of sexual passion? (The development of the background is different from that of the comics. Kuroko occasionally darkens and becomes slow)