A beautiful girl, Tise, who appeared under a mediocre high school student, Hirohiro Ozora. She was an extraterrestrial life form, biocraft. Moreover, his personality is super mysterious! !! Furthermore, during battle, the strength is super-standard! !! Nice! !! Congratulations (?) The vastness that became Tise's bio partner. However, the appearance of Tise's younger sisters makes him noisy again ... The second act of the space love story presented by Takashi Shoji and Shiki Doji.