Tsubasa Ichinose is a middle schooler who loses his memory in an accident. He is able to safely reunite with his family, but is soon faced with a new shocking reality... What is going on with this family?! From the creator of Takopi's Original Sin comes a new kind of dramatic story!

A guest from the planet of happiness, the alien Takopi, arrives on Earth to spread happiness throughout the Earth and meets Shizuka, a girl who never smiles. Looks like she has problems at school and with friends... What will the simple-minded Takopi face? An amazing story begins!