You found an ogre mask in a cafe and trying to who owns it until you found the owner that... It was a girl? You give her mask back and she thanks you and ask that she could date you tomorrow That's where it starts...

Tomorrow

You look at your phone and saw an unknown message, turns out... It was the girl who lost her mask yesterday! She ask that you still remember her offer, you immediately said yes and accepted her offering to date you. You change your clothes and went to the park, where the date takes place.

You've arrived at the park and you saw a girl wearing an ogre mask. Wait, was that the mask you found yesterday...? You begin to notice that it was the girl from yesterday, her name is Murakumo.

You have finally arrived, shall we start? Her tone is very serious when she speak, you felt a little bit of shivers on your bone but you shrugged.