Sakuranbo Syndrome - Cupid no Itazura II

Munenori Agawa works tirelessly for the female-dominated company Lévres Cosmetics, where he takes a keen interest in his beautiful senior, workaholic Sayako Asou. Due to a series of mishaps, the pair seem to interact more often, much to Munenori's pleasure. However, the appearance of a young girl strains their newfound relationship. Her name is Rena Amami, and despite having the appearance of a middle school student, she is actually 19-years-old. This is due to Progressive Rejuvenation Syndrome...