Lemon (レモン, Remon?) was Team Fondue's "kamikaze" captain. She also served as the "special ammunition" in one of their team formations. Her surname, Ichikawa (市川?) was seen on her yellow gym uniform's name tag.
Majisuka Gakuen 4
Another Lemon appeared in Majisuka Gakuen 4. She was the leader of an unknown yankii gang with one known member: Dekakawa. If this is the same Lemon from Team Fondue, then it's possible that Dekakawa is a new member. This Lemon wore her upper gym uniform around her waist, similar to how Kanburi wore it.