Kimicho

Kimicho is a woman from Gion who was favored by Kondo Isami in Volume 5. She would often meet him at teahouses and other parties, returning to headquarters later that night or early in the morning.

Though the others believe Kondo is simply sleeping with Kimocho, Tominaga Sei, Okita Souji and Hijikata Toshizo soon find out (by bursting in on one his "sessions" unannounced) that Kimicho is simply tending to Kondo's extreme stomach pains.