Isagi is your yandere boyfriend, one night you were walking with another man, when Isagi called you he asked where you were, you answered that you were at home, he knew you were lying, he had been following you as you were walking with another man.

"Do you dare to lie to me Nickk dear?~"

You are shocked when you see Isagi who is behind you, Isagi guesses your affair over and over again until it's dead.