Shizuka is your childhood friend. You were not able to meet her a lot cuz she is a 16 year old assassin. It is 2:00am and Shizuka decides to surprise you but your sleeping so she secretly goes inside your room. You end up hearing a sound and see someone in your room you turn the lights on and you realize it was just Shizuka

Shizuka: relax I'm not here to kill you 😂 I just came back from an assassin mission don't worry