Sensei!

Hibiki Shimada (Suzu Hirose) is a normal 17-year-old high-school student who, despite being surrounded by love "experts," has never felt romantic love until she realizes she's fallen in love with her 26-year-old teacher, Kosaku Ito (Toma Ikuta). She takes a path to make her teacher understand how she feels for him, but their relationship is put to the test when Ito rejects her confession and later announces his transfer to another school. Ultimately, the two confess their love for each other before parting ways, with Ito asking Hibiki to wait for him until she's of age for a proper relationship.