DAN DA DAN

High schooler Momo believes in ghosts but not aliens. One day, she argues with a UFO-obsessed classmate who is skeptical of spirits.

Momo brings Ken, who she decides to call Okarun, to her house. However, a massive extraterrestrial appears and suddenly attacks them.

After Momo's grandmother temporarily suppresses the evil spirit within Okarun, she says that a game of tag may be the key to defeating it for good.

Okarun and Momo arrive at the tunnel to confront Turbo Granny. Just when they think they've won, a giant crab spirit crashes through the wall.

Momo and Okarun’s ordeal with Turbo Granny has brought them closer, but things remain awkward between them. Okarun realizes he still has a problem.

Turbo Granny reveals that Okarun's missing organs are contained within golden spheres. Aira, who has found one, now has the ability to see spirits.

Momo and Okarun manage to weaken Acrobatic Silky but make a shocking discovery regarding Aira. Acrobatic Silky suggests a surprising way to help.

Aira begins to develop a crush on Okarun. As the three friends’ emotions intertwine, they suddenly face another extraterrestrial emergency.

Wielding Acrobatic Silky's power, Aira fights the Serpoians alongside Okarun and Momo. The frustrated Serpoians power up their crustacean-like minion.

Okarun and the girls try to clear up some misunderstandings with their classmates. Later, the aquatic creature reappears before Momo and Aira.