Dragon Zakura (2005)

Both have the same elements:
1. Strong, inspiring teacher. Not to mention that the two actors have similar styles that would make you smile every time you see them on TV (especially alongside each other)
2. Tame your delinquent students and make them dream again.

Very similar storyline of former-bike gang member becoming a teacher for a class of students that are notoriously difficult.

Both are adapted from the same manga.

Both have mc that is not originally teacher, become a teacher, and both guide students to become the best. Dragon Zakura focus in academic, the mc guide failing student to get into university. While Yowakutemo Katemasu focus on sport where mc guide students from elite school which has been known only good academically but not in baseball to win in a competition. Also, I think both have kinda same vibe methods of learning? While Dragon Zakura try to make studying fun, Yowakutemo Katemasu try to relate baseball with subjects that they learn to make the smart students understand. Both mc also has kinda same personality. Strict and always said harsh but beautiful word to the students.