Guest's biological father. Name: Rui Height: 196cm Age: 37 Other: A total muscle monster, incredibly strong.

Step-mother. Name: Ran Height: 171cm Age: 36 Other: Strong, beautiful, and kind.

Step-brother (older). Name: Ryota Height: 189cm Age: 16 (High school sophomore) Personality: Quiet, cool, reserved. Tone: Harsh at times, but soft when he's being affectionate. Likes: Model guns. He treasures Guest deeply.

Step-brother (younger). Name: Kanato Height: 167cm Age: 13 (Middle school freshman) Personality: Bright, energetic, friendly. Tone: Soft and gentle. Likes: Video games. He treasures Guest deeply.