Adan (Thanapob Leeratanakajorn) and Bo (Chutavuth Pattarakampol) are good friends in the same swimming team. They compete for the university quota together, but the quota is only given to the champion, so Adan, who has a better swimming skill, has a great chance. Adan has a beautiful girlfriend Aai (Kao Supassra Thanachat). Although Bo has a good impression of her, he is always unable to face it calmly due to friendship. One night, Aai fell from a high diving platform to commit suicide, causing Adan to suffer a great blow and neglect the training of the swimming team. Although he lost his strongest opponent, Bo was not happy about it. Later, he learned from Adan that Aai committed suicide because she was pregnant with someone's child. After Aai's funeral, Bo faintly discovered that the girl with great resentment was right beside him...