A Happy alien, Takopi, lands on Earth with one mission: to spread happiness! When he meets Shizuka, a lonely fourth grader, he vows to bring back her smile using his magical Happy Gadgets. But as he uncovers the pain in her life, Takopi learns that true happiness may require more than gadgets.
Shizuka lives a painful life until things take a sudden turn when she meets an alien named Takopi.
Takopi makes various attempts to help Shizuka, but things don't seem to work in his favor.
Takopi realizes something important while covering up the crime with Shizuka and Naoki.
Naoki struggles between his conscience and his desire to help Shizuka.
Shizuka goes to Tokyo, and Takopi remembers something very important that happened in the past.
Takopi makes an important decision that will save not only Shizuka but also Marina and Naoki.
