The discovery how to use the bath by Archimedes in history.

Yoko Hara, a chubby bento shop employee, attempts suicide at a train station. She is rescued by a handsome, science-oriented boy who happens to be passing by, but the two have an unexpected connection... The latest work by Nico Nicholson, the creator of "Nagasareru Ietateru" and "My Grandma," is a super-elementary particle-based (!?) romantic comedy about a chubby girl and a genius science-oriented boy!!