A high school comedy where every single student is literally a grave monument from a different era and culture. The premise is so stupidly specific, Yayoi barrows next to American graves next to Sengoku commanders teaching algebra, that it becomes its own perfect joke machine. You're not watching a show about high school. You're watching a show about what happens when archaeological artifacts develop crushes on each other in a classroom. The absurdity never apologizes, never explains itself beyond "yes, these are all tumuli now, moving on." By episode three you've stopped asking why and started asking what other impossible school configurations exist in this universe.
Coffy enrolls at Tumulus High School, an institution unlike any other: every student and faculty member is literally a sentient burial mound. The school itself doubles as a cemetery, where ancient Japanese barrows sit alongside American graves and other funerary monuments from across time periods and cultures. A Sengoku-era commander teaches classes. Romance blooms between mounds. Friendships form across archaeological boundaries. The comedy erupts from this absurd collision of the mundane school experience with the surreal reality of living as a walking, talking tomb. Coffy navigates crushes, homework, and social hierarchies while contending with the bizarre personalities of her fellow tumuli, each bringing their own cultural baggage and historical baggage, literally. There's genuine affection underneath the punchlines, whether characters are bonding over shared experiences or clashing due to generational differences spanning centuries. It's ridiculous, endearingly weird, and committed entirely to its premise. The show treats sentient burial mounds attending high school with complete sincerity, which makes every moment land harder. Perfect for viewers who love comedy that commits fully to its own strange logic.