A Roman bath enthusiast gets dropped into an anime academy and treats it like a hot spring discovery. The joke is dead simple: Lucius applies bathing logic to animation production and somehow it works. Animation nerds get to watch someone earnestly confused by their own industry from the outside, which is either the most self-aware thing anime studios do or the most self-indulgent. If you love Thermae Romae's specific brand of "wrong person, right confidence," this is built for you. If you don't, five minutes will tell you everything.

Lucius turns up at Yoyogi Animation Academy and is taken on a guided tour of the school. Along the way he picks up different parts of the animation field, from the idea of moe to after-recording. The result is a single comedic special, a collaboration piece built around the academy and its lessons on the anime craft.