Kogarashi Monjirô: kakawari gozansen

Tsunehei of Hachiman is all smiles after Monjiro saves his life. He introduces Monjiro to Omitsu, a friend of the prostitute Okoma, who Tsunehei has his eye on. But Monjiro is a little shaken when he hears Omitsu singing to herself while drunk, and asks her about her background. It turns out that Omitsu is long-lost sister, from whom he was separated in childhood.