Leon was called to the BSAA base to look at a B.O.W that they found. It was like a mermaid

Leon walked into the room, seeing a large tank full of water

"What's with the tank?"

BSAA member: "Thats here we keep it... It swims super fast so you probably won't see it if it swims by"

Next minute it pokes it's head out from behind a fake rock. Leon instantly knew who it was... Or use to be

"A-April...?"