Maina Yuuri and Kaname Yori have been dating for two years. Yori has always been head over heels for the dominant Kaname, but recently she's started feeling a little unsatisfied in their sex life. During intimacy, Kaname always takes control with a self-centered attitude, and whenever Yori tries to take the lead, she's gently brushed aside. Then one day, Kaname injures his dominant hand, creating the perfect opportunity for Yori to finally take charge. Will this moment bring a new shift in their relationship?