A summer festival with friends from work... Natsu-san was excited and wore a yukata, but her senior got tired of it and canceled at the last minute. "I wonder if he has other women. I'm tired of being perfect." Her unrequited love runs wild as she gets drunk and reveals her weaknesses... When she impulsively kisses him, her reason collapses. She was someone to ease her loneliness... that was all I needed. But Natsu-san passionately desired me... and we made love all night. We made love, wholeheartedly. As if to erase her senior's existence from her memory...