A beautiful married woman who lives a comfortable life. There was a small smolder of anxiety in her heart, which should not have been worried. I wonder if my beloved husband is having an affair. Once a suspicion sprouts in the mind, it grows up in a blink of an eye. If you do that... should I not find out too? Even if you overlap the body with a man outside. Even if it's your brother who shares blood with you, if you don't find out...