Living in a high school dorm, Yukino and Kanade Sakurai are inseparable twins. Even though they look the same, they express their love in romantic ways like going on dates and holding hands. But things change when Kanade starts acting aloof towards her sister after seeing her with Sakuya Kamiyama, assuming that they are dating each other because of their constant interactions. Yukino becomes apprehensive and tries to keep her sister by her side. Little does Kanade know that Sakuya has been seeking counsel about her unreciprocated feelings for Kanade. What twists await these three in the times to come?