Several months into their relationship, the bond between them continues to deepen. Yuusuke is a graduate student with a sharp intellect, yet he constantly overthinks and worries about those around him. On the other hand, Satomi is an ordinary girl who works at a bookstore, valuing her smile more than overanalyzing things. Despite their contrasting personalities, they complement each other well and enjoy their daily lives together. While Yuusuke is drawn to Satomi's unpredictable actions and way of thinking, he occasionally finds himself puzzled, unsure of what she truly desires. This mysterious dynamic between them reveals the profound depths of romance.