My childhood friend, who was so shy, naive and neat... before I knew it, she turned into such a lewd female... The feeling of humiliation when a childhood friend who likes you in front of you is cuckold by a classmate, and above all, being embraced by the guy I hate the most. …I am torn apart by a mixed feeling of jealousy, anger and sexual excitement. Obscene youth story. Includes 3 school student couples.