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Sou is a second-year student in class B and a member of the astronomy club at Uchihama Academy. Both his father and mother are scientists and are authorities on mechanical engineering. He lives in his childhood friend Kaori's house as his parents wo... read more

Sou is a second-year student in class B and a member of the astronomy club at Uchihama Academy. Both his father and mother are scientists and are authorities on mechanical engineering. He lives in his childhood friend Kaori's house as his parents work overseas. He is interested in astronomy, and plans build a planetarium for the school festival.

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A mysterious transfer student who Sou found naked. A gentle person who does things at her own pace, and is rather clumsy as well.

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A senior member of the astronomy club, Nagisa is undoubtedly the most dangerous person in the entire school. She’s from a very powerful family and Nagisa herself is not one to be trifled with, not to mention she has an air of mysteriousness surrounding her. She is a genius girl but the lonely type. ... read more

A senior member of the astronomy club, Nagisa is undoubtedly the most dangerous person in the entire school. She’s from a very powerful family and Nagisa herself is not one to be trifled with, not to mention she has an air of mysteriousness surrounding her. She is a genius girl but the lonely type. Enjoys bullying Sou just for the fun of it.

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Airi is a very intelligent and hardworking girl who happens to have mighty kicks and is also a tomboy. She’s the leader of the astronomy club. Airi is pretty much skilled in almost everything and is usually the only one who understands what Nagisa i... read more

Airi is a very intelligent and hardworking girl who happens to have mighty kicks and is also a tomboy. She’s the leader of the astronomy club. Airi is pretty much skilled in almost everything and is usually the only one who understands what Nagisa is talking about.

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The main heroine. Sou's childhood friend who is in love with him. She is a second-year student in Class B. She is Sou's classmate and the vice-president of the astronomy club. She is kindhearted and is good at cooking. She lives together with her read more

The main heroine. Sou's childhood friend who is in love with him. She is a second-year student in Class B. She is Sou's classmate and the vice-president of the astronomy club. She is kindhearted and is good at cooking. She lives together with her mother and Sou's in a house; Sou's room is in a building detached from the main house.

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Kenny is a foreign exchange student from America who speaks fluent English. Because he is calm and not afraid of anything, Kenny has become a 'toy' of the members of the Astronomy Club. When his friends are in trouble, he is willing to share the burden with them. Kenny has a fiancée lived in t... read more

Kenny is a foreign exchange student from America who speaks fluent English. Because he is calm and not afraid of anything, Kenny has become a 'toy' of the members of the Astronomy Club. When his friends are in trouble, he is willing to share the burden with them. Kenny has a fiancée lived in their country, Jennifer. He brings the photo of her everywhere for his lucky charm.

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Kaori's mother and a researcher at the National Institute of Science. She immersed herself in studying the human brain.

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Yamaga Neko is a vice committee chairman who wear her glass. Disliking any skewing matters, she takes her business seriously when she wants to express her needs. She becomes shy (her weakness) only when she's facing the committee chairman.

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