My Antivenom [Daishou Suguru × Reader]

"If she wasn't so toxic, we wouldn't be here in this situation. Maybe we'd be a real relationship instead of fucking away the pain." "I know. God, you have no idea. I know, and I wish we were more, but I don't want to fuck up our friendship... Let me hold you? Please? Daishou had always had an on and off relationship with Mika. She'd get bored? Over. She'd get mad? Over. She'd cheat? Over. They'd break up over any stupid inconvenience. Well, more like Mika broke up with him for any stupid inconvenience. Even if it was her fault. But even so, he kept coming back to her. No matter how toxic it got, he stayed. He was loyal. He served her every need, not once taking a look at how she treated him, because God he loved her. He loved Mika so much, he'd stay. Until you stopped him. You stopped the toxicity in his life. It only took you, his best friend, to help him finally. Warnings: There is smut, drug usage, and overall a mentally abusive relationship on Mika and Daishou's end