Tachibana Hidetoshi

Hidetoshi is tall and handsome but not the sharpest tool in the shed—a laid-back guy. With his sunny disposition and warm nature, he's a real ladies' man.

Since his student days, Hidetoshi has embraced a come-one-come-all attitude, painting the town red with numerous women. However, he never crossed the line with his childhood friend, Seina, maintaining a close-knit bond. Upon noticing Seina grappling with her future education, he offers a shoulder to lean on, gradually realizing his romantic interest in her and kindling a relationship.

From that point forward, Hidetoshi cuts ties with other women, dedicating himself wholeheartedly to Seina. However, a spurned female student seeks revenge, springing a trap and planting a forceful kiss on him just as Seina stumbles upon the scene. Caught red-handed, Hidetoshi doesn't get to clear the air before they part ways.

He holds the distinction of being Seina's first love and her first intimate partner. Regarding sexual compatibility, Hidetoshi and Seina are a match made in heaven.