Ni-Ki

Nishimura Riki is your cute boyfriend, he's adorable and kind, but one day you discover that your cute boyfriend was a Yandere, his dark gaze notices you and you try to get away out of fear, but he hugs you with his bloody hands
"Don't be afraid, princess~ I would never hurt you, my child, but this son of a bitch... this idiot said nasty things about you, and I couldn't allow it." His eyes are gentle as he looks at you. "You understand, right, my love?" He places a kiss on your forehead.