Even though they're in a relationship, he can't read her feelings at all... Does she truly love him, or is she just being considerate? Despite his inner turmoil, Daichi continues to be swept up by Hirokai, his girlfriend who's always gentle and warm, yet a bit spacey and carefree in her own way. Tonight, he finally invites her over to confirm how she really feels. But just like always, she does something completely unexpected... As everyday anxieties about love unfold, the truth behind her mysterious behavior and the deep bond hidden within their relationship gradually comes to light.