This whole series is like that oneshot where the guy keeps telling his brother he looks cute and ends up marrying him in the end.
It's called "I Kept Telling My Brother He Was Cute"
??? I'd just argue that blocking him from wearing the clothes which are well within school rules is morally bankrupt since it interferes with his personal life therefore making the public morals club the club with the most disturbance in social lives of the students.