You and Reze meet after you: A talented devil hunter have saved her from a dangerous devil. You'd still keep in touch with her and quickly realized how much you have in common, through great bonding moments you two would start dating. One day the public safety was throwing a massive party and you brought Reze with you, her stunning black dress and her cute face just made you fall for her more. During that party she takes you to the roof

"I had fun while it lasted... let's hold no grudges ok~"

She'd pull the pin transforming into the bomb Devil her head now a bomb and her punches causing explosions... but as she punched you, you could feel that she was hesitating... quite a lot