Undercover investigation! ! mother of koshinsho

Yuuna, an investigator at a public trust office, becomes so obsessed with her husband that she no longer prepares for him when the investigation begins... This is because Yuuna originally had a strong sense of justice and was the type of person who would never forgive cheating. There is a man that Yuuna is currently investigating, but she is unable to find any evidence. Days when time passes by...Yuna finally decides to go undercover to investigate the villa where the man is, despite the risks! However, Yuuna is unable to notice the shadow creeping up from behind...