Kana Orikura gathered her courage to confess her love for her senior, Yoshihiko, just before he headed off to college. Their relationship took flight after their first kiss and fulfilled Kana's dreams. Despite their chemistry, Kana and Yoshihiko face challenges that leave her feeling isolated and miserable. Adding to the turmoil, the dashing and youthful teacher, Shougo Hayakawa, suddenly moves in with Kana to her surprise. Kana is left grappling with a difficult decision. Will she remain committed to Yoshihiko, her first kiss and love, or succumb to the temptation of a new and more attractive suitor?