Saionji Rino (Kitagawa Erika) has been living with Mitsunaga Jun (Kitano Shota) for nearly five years, yet Jun shows no signs of moving toward marriage, leaving Rino increasingly frustrated. Though she lacks the courage to bring up marriage herself, she continues to struggle with Jun's indifferent attitude. Recalling the one time in the past when she confessed her desire to marry him—only to be rejected—Rino begins to open up about her inner turmoil.