A song just for the two of us. A place just for the two of us. A sign known only to the two of us.
That was the beginning—of our brief ten years together.

(Source: Japanese = kimiutamovie.toho.co.jp || Translation = MyDramaList)

~~ Adapted from the novel "Kimi ga Saigo ni Nokoshita Uta" (君が最後に遺した歌) by Ichijo Misaki (一条岬).

Onizuka Eikichi, now 52, is a legendary former teacher known for his unconventional methods and wild past as a biker gang member. Although he once helped many students by facing their problems directly, his extreme behavior made it difficult for him to keep a steady job. Now, he arrives at Seishin Academy, which may be his final chance as a teacher. The students in his class avoid close relationships and care more about social media and personal gain than each other. The classroom feels cold and disconnected. Ignoring rules and social expectations, Onizuka confronts his students head-on and pushes beyond the school's strict system.

Among the faculty is Kashiwabara Mio, a pragmatic teacher who values efficiency and keeps her distance from both her work and her students. As he becomes involved in each student's hidden struggles, he begins to change not only the students, but also Kashiwabara and the teachers around him. Genuine human connections slowly begin to emerge in the classroom—challenging the school's system itself.

(Source: Kansai TV; edited by MyDramaList)

~~ Adapted from the manga series "Great Teacher Onizuka" (グレート・ティーチャー・オニヅカ) by Fujisawa Tooru (藤沢 とおる).