Emotions that cannot be revealed――. Seina, who harbors feelings akin to love for her older sister, Yuna, finds herself unable to sort out her feelings even after starting a relationship with Kiku. With Yuna's temporary return to the country, the three of them decide to discuss the feelings they each carry. However, as expected, their emotions end up clashing――. As the past between Kiku and Yuna is also revealed, this is the story of the love shared by two women, Volume 2.