During his middle school years, Minamoto-kun was mercilessly bullied by envious female classmates due to his girlish facial features. This traumatic experience left him with an aversion to women and prompted him to attend an all-boys high school. However, determined to move past his past, he pursued higher education, only to face a new challenge. After his father's remarriage, he was asked to vacate the family home and temporarily reside with his strikingly attractive aunt, who was an adjunct professor at the same college. Upon his arrival, his aunt surprised him by proposing that he serve as the guinea pig for her reverse Hikari Genji experiment, which she presented to him following a breast reveal.
