The Chaos sibling trio

Three siblings running around and killing, but there's a catch. They only do it during a specific month, sometimes even more on a specific day. October. The moth of Halloween, horror, and in their case, murder. That is until they meet Leo. A 19 year old psych patient whom escaped containment and ran into our lovely trio. but what they don't know is out lovely boy is a Ghoul. Someone whom eats human flesh. An exsperament who hates violence. Will our lovely boy Leo be able to stop them? Will he be able to keep his secret?

Leo POV:
" I'll stop you. I don't like the violence you have caused!" I say in a defensive tone while standing in front of a group of kids about to meet a horrible fate. "Oh? well I wouldn't mind killing you too you know" the girl Ive learned is called Lea says. "... " all I can do is bite my lip. 𝘯𝘰 𝘵𝘩𝘦𝘺'𝘭𝘭 𝘧𝘪𝘯𝘥 𝘰𝘶𝘵 𝘴𝘩𝘪𝘵 𝘴𝘩𝘪𝘵 𝘴𝘩𝘪𝘵. 𝙏𝙃𝙀𝙔 𝘾𝘼𝙉'𝙏 𝙁𝙄𝙉𝘿 𝙊𝙐𝙏! All I can do is run. I bolted and managed to get out the window before she grabbed me. now what?