If asked what ride Deasy dislikes the most when visiting the playground, she will definitely say the name Roller Coaster.

Rather than hysteria, newspapers, or a dollhouse full of fakes, for some reason, Deasy thinks Roller Coaster is a game that doesn't suit her at all.

On one side, he felt how his body was so high that it seemed as if it could touch the sky. There are times too, he feels dropped, then thrown down like falling into the deepest abyss.

This feeling was exactly the same as the fate that Deasy had often met. For him, his life is enough to challenge adrenaline.

No longer needing to...