Kenka Bancho Otome - Koi no Battle Royale
Kenka Bancho Otome on Youtube : "Girl Beats Boys Episode 1 - 12 Dubbed" https://www.youtube.com/watch?v=dMVrYmBPsNM https://www.youtube.com/watch?v=Z5yr1M_iM28 Replacing her twin brother in his all boy school, she dresses up as a boy and challenges the best fighters in the school. Of course she fights well, but that's not why she conquers all. Love the anime !
Gokusen
Animé = https://www.youtube.com/watch?v=Lh9kSN4_BFE TV serial = https://www.youtube.com/watch?v=gaRPLgow6Pk&list=PLF2C81D57FBA12853 Read manga for the complet version. Shin and Yankumi progressively get to rely on eachother. Heart-warming friendship between teacher and students. Very little romance though, but the trust is just so beautiful.
Tiger and Tiger Gourd
New transfer delinquent and top of class Yakuza tiger-kun student, start off hating each other. Hilarious bickering.
Oresama Teacher