Ifrit, who has been trapped in Rimuru due to the latter's Predator skill, recaps events of the season while in a discussion with Veldora as they play Shogi.

In the story, the protagonist Youtarou Misaki finds himself lying on the beach one day. He is picked up by Arashi, who manages a restaurant called Kurage no Shokudou. When asked who he is, the protagonist tells a lie that he lost his memory—but he remembers everything, including the fact that his twin brother died.

Recap of first 6 episodes of Koisuru Asteroid.

To escape the explosion of their ship caused by a terrorist attack, the parents of a young baby put him inside an escape pod and send him out before dying. The pod ends up on a planet inhabited by beings able to transform themselves into animals by using a special ring. The young baby is rescued by the royal family, and grows up to become the prince. When the planet is attacked by pirates, he will be brought by force to Earth and discover everything about his own origins, and forgotten brother.