やめてよして入らないで (Yamete Yoshite Hairanaide)

Background
A young girl (Miku) wakes up in the middle of the night and sees Santa walk around in her house. She thinks that he's a burglar or a pervert and tries to run for her parents room but sees that he's on his way there. She tries to attack the man to protect them, but discovers that it's just her father (KAITO) in a costume.