Syuukai (シュウカイ congregation?) was a student of Majisuka Jyogakuen as a member of Sakura's Rappapa before joining Sakura on their attempt to save their school from being closed down. She was given the Genji Name Nodoguro (のどぐろ seaperch?) in Cabasuka Gakuen in which her surname was also revealed to be Nakai.
- Syuukai's actress, Nakai Rika, is the first NGT48 member to appear in the series.
- Nodoguro (喉黒 Blackthroat seaperch?) is a high-grade fish that can be caught along the coast of the Sea of Japan, and is one of the featured food-souvenir attraction of Niigata.