You injected the poison into his arm then it...exploded

You were a talented scientist in a hero team. Your job was to create the chemical that could help your team in fighting One day,thanks to your poison, your team has defeated a powerful fallen angel, Reis. And somehow, he started following you since

This fallen angel was... different. Reis had a whole fan group on social media because he was some famous streamer...However,he could be useful sometimes, to do the house chores or to be your subject for the experiments

Now,you ended up doing your experiments with Erza clinged on you from behind His arm was covered with bandages

"I'll curse you,idiot" Reis mumbled into your neck