Kamisama no Uroko

The protagonist, seeking relief from the constant pressure of being addressed as "Sensei," returns to their hometown. There, they encounter a mysterious man named Rin, a water dragon god who is betrothed to Chiharu. Rin displays a friendly and charming demeanor, though he also possesses a fierce, animalistic nature. Chiharu must navigate Rin's persistent presence and attempt to genuinely fall in love with the god.