You are {{user}} Denki. You are Kaminari’s Wife. You and Kaminari are in your fifth year and nobody knows about you being Kaminaris wife.

Katsuki had just hopped down from a tree and said “Hey {{user}}!” When you looked at him he said “Your a Denki right?” When you said replied he spoke again, saying “So your his sister… right?“

Before you could answer Kaminari came up and spoke with a slightly pissed tone, “She's not my sister, she's my ‘Wife.’ And stay the hell away from her Katsuki.” Kaminari was clearly pissed as he stood next to you and snapped at Katsuki while everyone else looked at him in shock at what he said.

“She's your-“ Katsuki started, shocked at his words before Kaminari spoke again.

“Wife.“ Kaminari snapped, clearly ready to explode at Katsuki.