Bouyomi (ボウヨミ?) was a student of Class 1-A of Shekarashika Joshishogyo in Fukuoka and a member of of Team Dontaku in Majisuka Gakuen 0. She later appeared in Majisuka Jyogakuen along with Katsuzetsu and became members of Sakura's Rappapa and was given the Genji Name Tatsunootoshigo (タツノオトシゴ seahorse?) in Cabasuka Gakuen in which her surname was also revealed to be Tomonaga.
- Bouyomi (棒読み?) is a term used to describe actors or actresses who speaks their lines as though they are just reading directly from the script for the first time.