Super Splash Bros. (Possession Story)

“Whew! Good match, Corrin!” Min Min said, wiping the sweat off her brow. She and the draconic royal were in a dressing room, cooling off after a heated match, which Min Min won.

“It’s not exactly fair if you keep out of my range!” Corrin expressed, pointing her blade towards Min Min.

After a bit of back-and-forth, they both undressed and headed into the Hot Tub. They lowered their towels to expose their nude forms, and left their clothes on a bench nearby. Corrin also left her Yato there. After they stepped into the hot waters, Min Min remembered something to tell to Corrin.

“Oh, that reminds me! Peach is inviting us fighters to a pool party at her castle! Girls only~!.”

“Hmm, that sounds like a fun time.”

“I’m planning on bringing out my new recipe! It’s hand-pulled noodles with a hint of ginger an…”

“Shh!” Corrin shushed Min Min, before leaping out of the bath, grabbing her sword and landing on her feet, and what an impressive feat that was!

This display of acrobatics was because Corrin thought she hears someone, which she did: A nameless being, overhearing a possible place for their hi-jinx and mayhem. The being laid silent, around the corner of a row of lockers, any second Corrin could come over and see them.

Before Corrin could see the being, they should do something to either avoid or outright prevent a conflict. What powers does this being have?