Tsubasa, an ordinary teenage girl, makes a deathbed promise to her grandfather to fulfill his last wish. She soon learns that the wish binds her to marry the heir of a prestigious tea ceremony school. Complicating matters, there are two heirs to choose from, leaving Tsubasa torn between selecting a husband or fleeing the arrangement entirely. The main storyline follows her attempts to navigate this unexpected pressure while dealing with the two young men, whose personalities and intentions differ, and discovering what she truly wants for her own future.

The volume also includes three additional one-shot stories. The Prince's Secret features Yukasato, who witnesses her school's popular prince, Matsunaga-senpai, rejecting a confession and then panicking alone. She offers to become his girlfriend to help him overcome his crippling fear of girls. Love Star follows childhood friends Ito and Kaho. Ito is a tyrannical but famous star who always bosses Kaho around, yet she complies at his mother's request. When Ito drags Kaho to a photoshoot, her perspective on him begins to change. Please Kiss Me centers on Hinata and Jun, a couple who have been dating for three months but have never kissed. Hinata discovers that Jun faints whenever he tries to get close enough to kiss her, leading to a series of awkward and comedic attempts.