|Manga Debut||Chapter 151 (opening color pages)|
|Anime Debut||Season 1 Episode 13 (Final Title Card)|
Pomhei is a creature that appears on the Saiki Kusuo no Psi-nan anime frequently on the title cards and opening sequence, acting as a mascot.
Pomhei first appears on the opening color pages of Chapter 151 on Weekly Shōnen Jump's 2015 29th issue, which released on June 15, 2015. Pomhei, along with other characters, congratulate the manga series' 3rd anniversary of serialization. Pomhei seems to end it's sentences with the suffix -pom.
Pomhei also has a character introduction which reads, "The most powerful life form in space. Killed Van=Kraliser's parents."
- Pomhei was referenced on Chapter 222
- Anpu, on Asou Shuuichi behalf, calls the character weird and completely forgotton about it by the time the anime released over a year later