Seita

Seita is the adopted son of Hinowa and the biological son of a courtesan of Yoshiwara, who died after giving birth. As a baby, he was led to the outside world in the care of an old man by Hinowa.

As described by Otose, he is clever, honest and learns quickly. He’s able to adapt to new situations as evidenced by his ability to make a living through pickpocketing alone but also earn legitly by honest work.

He has a kind and strong heart as even after learning Hinowa isn’t his biological mother, he stands firm and claims it enough that she risked her own safety to protect him to be considered his mother.

He appears during the Yoshiwara is Burning arc (Episodes 139-146) and Red Spider arc (Episodes 177-181).