Season 1
- 1Brother23 Jul 2018
- 2Dog30 Jul 2018
- 3Kiss6 Aug 2018
- 4Takoyaki13 Aug 2018
- 5Life20 Aug 2018
- 6Love27 Aug 2018
- 7Girl3 Sep 2018
- 8Death10 Sep 2018
- 9Heart17 Sep 2018
- 10Brothers24 Sep 2018
In the year 2020 in Tokyo, Fuyunosuke with his white hair attends a university. A creature from outer space appears in front of him. The creature is his older brother and Fuyunosuke names him Natsutaro. Fuyunosuke and Natsutaro are alien brothers. They came to Earth to survey whether the planet was inhabitable for its species. While on Earth, they must learn about humans. They interact with humans and their relationship with them deepens.