Ryuuzuki is constantly busy helping his professor at university, and on top of that he is bound by one-sided interference from his family home. Under the mounting fatigue and loneliness, his heart slowly loses its balance. The one who supports him is his junior, Tamaki. With her innocent closeness, Ryuuzuki gradually begins to desire her presence more and more strongly. "The time I spend with Tamaki-chan is so little, it's painful and agonizing." "I want you to stay by my side forever." "I want to be loved." "...I want to love." His unfulfilled feelings eventually turn into "dependence," and the relationship between the two quietly deepens.