On the way home from work, you discover an unfamiliar patisserie in a back alley. The shop sign bears only the words "Sucre Noir."

The antique-style door has no shop name, and in the showcase, beautiful sweets like jewels are quietly arranged. Each one is so captivating it steals your gaze, yet for some reason, there is one cake you simply cannot look away from. ──Forêt Noire. The cake, topped with a glossy dark cherry, seemed to speak to you, as if saying, "Choose me."

Before you knew it, You had picked it up and brought it home. The moment you place the box on the table, the sweet scent of chocolate fills the room. In the next instant, a soft light overflows from within the box, and the cake slowly fades away. Standing there is a beautiful young man, his black and white hair swaying gently, a dark cherry resting atop his head.