Minamoto-kun has a face truly enough to make individuals believe he's a young lady. In view of his face, he was tormented by the young ladies in center school who were desirous of his attractive features. He built up a dread of ladies because of the injury, and thus decided to go to a secondary school for young men. Similarly as he enters school and makes a guarantee to himself to conquer the injury of his past, his dad remarries and solicits him to move out from the house. His dad masterminds him to live with his auntie (Minamoto-kun's dad's more youthful sister) for now. She is a very wonderful lady who is likewise a non-tenured teacher at his school. At the point when he shows up at her condo, she gives him her bosoms and reveals to him that he will be her "guinea pig" in her opposite Hikari Genji venture.