Umika Konohoshi

She is a first-year student of Fujino Misaki High School who was unable to make friends due to extreme fright, and she was escaping from reality, thinking that she could express her feelings to aliens living on planets other than Earth.

She is extremely frightened and unable to communicate well with others. After meeting Yu, they set a goal to build a rocket to reach the stars in space.

Her special skill is swimming.