Takopi, a naive and hyper-optimistic alien from Planet Happiness who arrives to spread joy on Earth, makes the mistake of his life when he meets Shizuka, an elementary school girl living a living hell of vicious domestic abuse, ruthless bullying at school, and devastating loneliness. Convinced that a simple magical gadget can solve every problem like in cartoons, Takopi tries to make her smile, but ends up opening a Pandora's box of psychological trauma, violence, and irreversible tragedy. From time travel that only makes things worse, kids broken by the cruelty of adults, and fatal mistakes born from a misunderstanding of human nature, this story will mercilessly punch you in the face, transforming an innocent alien tale into a dark, dramatic, and harrowing psychological thriller that leaves no escape.