5-Okunen Button
Japanese title: 5億年ボタン
Alternative titles: The 500 Million Yen Button
Type: TV
Source: Other
Episodes: 12
Status: Finished Airing
Aired: Jul 15, 2022 to Sep 30, 2022
Broadcast: Fridays at 00:30 (JST)
Duration: 21 min per ep
Rating: PG-13 - Teens 13 or older
Studios: Studio Sota
Genres: Comedy, Sci-Fi

The story centers on a button that grants a million yen to whomever pushes it, with the condition that they must spend 500 million years alone in an empty space. However, at the end of the 500 million years, the person's loses that memory and returns to the point in time when they pushed the button. A person with this button appears in front of 5-year-old Tonio, 14-year-old Jaibi, and 17-year-old Suneko - three siblings who need money to pay for their father's hospital treatment.

(Source: Anime News Network)