Tomi, a married woman, lives with her two sons while her husband is away on a long business trip. Their days seem ordinary, but they share a hidden secret. The sons constantly seek affection from their mother, and to satisfy their desires, Tomi develops an intimate relationship with them. The sons mistakenly believe their mother belongs only to them and eagerly deepen the bond. However, Tomi keeps this a secret, carefully protecting it while holding onto her responsibilities as a mother and her love for her sons.