In my family we just slap the watermelons

Microwaved a boiled egg to reheat it. Didn't know microwaved boiled eggs could explode. Bit into boiled egg and it exploded in my face. Ended up with a scratch in one of my eyeballs.

Looks like Satan from Obey Me! It's an otome game on mobile and has made some anime episodes on it (which I am assuming where this scene is from).