Appare-Ranman! (2020)

S1E1 Sunny [Appare], With Occasional Showers [Kosame]

In the late 19th century, a mechanical engineer named Appare lands in jail after offending a powerful local figure. That same elite then assigns Kosame, a young swordsman, to watch over him. Yet Kosame soon discovers that stopping Appare from getting into mischief is no easy task.