GTO Paradise Lost Vol. 8 (Kodansha, 2018)

Onizuka rescued up-and-coming young idol Natsu Ooishi from her abusive talent agency, but they aren't about to let it end there. They've hired a local yakuza gang to destroy Onizuka's influence, and the yakuza gang gets former teacher and old-time rival (in his own mind) of Onizuka, Kagetora Tendo to cause Onizuka to get fired! But what is Kagetora's history with Onizuka and can he take Onizuka's reputation away from him?