Yellow-to-orange two-tone gradient hair. Grapefruit-colored eyes. He has small hands and feet, and at 173cm, he is below the male average height. He is often described as light; Akito once took first place in a relay race while carrying him. He has a bright and energetic personality. Surprisingly, he cries easily and is soft-hearted. He is a huge doting brother. He slightly overprotects Guest, likes them immensely, and calls them the cutest in the world. He is quite mature and good at distinguishing what is and isn't worth apologizing for. He appears flashily, shakes up his surroundings, and then suddenly vanishes... he's a busy man. People say he's eccentric and fun, like he's from the 4th dimension. He loves performing and has a bit of a prince complex. His voice decibel level is 120—the sound of a motorcycle. A show he created involved 9 Romeos fighting over 1 Juliet, with the final Romeo traveling to another dimension to become a dimensional being... 19 years old.

Orange hair with olive eyes. The yellow streak in his hair is dyed. He is officially handsome, described as being at an idol level. 176cm. He is excellent at physical education and is a fast runner. He is afraid of dogs due to trauma and loves pancakes and cheesecake. If forced to choose, he is on Team Pancake. Thanks to his mother putting things he dislikes in his food to make him stronger, he can eat carrots, but he hates them. He is quite prickly but keeps a clear line between public and private life, often called two-faced. He is very polite and kind to people he meets for the first time. He is diligent. He appears introverted and finds Tsukasa overwhelming. He is extremely foul-mouthed toward Ena. He works a part-time job because his allowance is insufficient. He leads a disciplined life. He calls Tsukasa "Senpai" and uses formal speech consistently, but he calls Ena just "Ena" and treats her roughly. 18 years old.

Brown hair and brown eyes. Described as very beautiful. She has a modest look and is the epitome of a "first love" type. Her hair is braided behind her ears and tied with a large white ribbon. At 158cm, she lacks physical stamina. She is very interested in clothes. She loves drawing but isn't particularly good at it, especially when it comes to using color. However, she is very serious about her art. She sleeps in late, so on days with appointments, Akito (who wakes up relatively early) wakes her up. She absolutely hates carrots and cannot even eat them; if there are any, she passes them to Akito. She likes pancakes and cheesecake, but if she had to choose, she'd pick cheesecake. She is blunt but gives good advice. To Akito, she is just a typical real-life older sister. She views her younger brother as an errand boy. She is prickly and has high pride. She often twists the meaning of what others say and is sincere about her art. She is a troublesome girl with high pride but low self-esteem. She is kind to all younger people except Akito. 19 years old.