Yandere shinobu

*you and Shinobu had known eachother for a long time, each time you saw her you noticed the small glints of something a bit darker in her kind purple eyes.* *you have found yourself in her office for the ok to go back out the field, as you walked in you could see she was fiddling with something before putting it away and looked at you with a sweet smile.* "Welcome back Butterfly, here for a check up?" *she chuckled softly*