電波教師 He Is a Ultimate Teacher [Denpa Kyōshi] #21

This 21st volume of Denpa Kyōshi continues the story of Junichiro Kagami, a brilliant but eccentric physicist turned teacher who uses unconventional methods to guide his students. Published by Shogakukan as part of the Shonen Sunday Comics line, this installment collects chapters from the original manga series, further exploring Kagami's unique approach to education and the challenges faced by his students at the private school where he teaches.