Peacemaker Kurogane - Episode 11 "Plot"

Tetsu, after being told by Tatsu to air out some old books, is given a handful of sweets from Okita. After Tatsu spills some books when briefly bumping into Yamanami, the mysterious man suddenly shows up. Revealed to be Ryōma Sakamoto, he refers to Tatsu as one of "the peacemaker's sons". Okita tells his unit to capture Ryōma, for he is a wanted criminal, however Ryōma ends up evading after shooting a few men from Okita's unit. Tatsu is explained that Ryōma abandoned his clan and has revolted against the loyalists. A girl named Hotaru, implied to have a crush on Okita, has come to assist Ayumu in the kitchen. What Okita does not know is that she is really spy working for the Chōshū clan. At night, Hotaru gathers old papers from Okita's room, but she almost gets in trouble with Ayumu. The next morning, the papers are not accepted, and Hotaru requests to resign as a spy.