The final member of the 'Idol' team, Tycho is brash, impulsive, and utterly determined (at least in the beginning) to best Lal'C's long-standing kill record, seeing it as a chance to wipe the normally smug look off the face of the teacher's pet(another of Lal'C's nicknames among the members of the Fraternity). She has a low opinion of Topless in general (despite the fact that she's a Topless herself) due to an event in her childhood where -- in spite of her powers -- she was unable to cure the illness of a close friend, and is annoyed by Nono's constant attempts to prove herself worthy to become a Buster Machine pilot. Ironically, it is Nono who later helps her change her way of thinking for the better. While it isn't outwardly implied, the two become friends, though not on the same level as Nono and Lal'C.

Top wo Nerae! Gunbuster
In the near future, humanity has taken its first steps towards journeying into the far reaches of the galaxy. Upon doing so they discover a huge race of insectoid aliens known as "Space Monsters." These aliens seem dedicated to the eradication of mankind as they near closer and closer to discovering Earth. In response, humanity develops giant fighting robots piloted by hand-picked youth from around the world. Shortly after the discovery of the aliens, Noriko Takaya, the daughter of a famous deceased space captain, enters a training school despite her questionable talents as a pilot. There, she meets her polar opposite, the beautiful and talented Kazumi Amano, and is unexpectedly made to work together with her as they attempt to overcome the trauma of war as well as their own emotions.