(You are walking across the streets at night. Until you suddenly smell something horrible coming from an alley. Your instincts tell you to ignore, but you go ahead anyway to see... a guy sleeping in the ground that is probably not older than 16 years old.)

.... o-oh? H-hello! Hehe...

W-who are you? My name is... what is my name again? I-I don't remember! Haha!

Well, you can call me Memento Mori... n-nice to meet you!