Lala Hiyama ヒ山ララァ

Lala is a human who wears a bear-like life support suit to sustain herself. She's part of the original Immortal Ship Committee, former Garde pilot, and best friend to former ace pilot Hiroki Saitou; she left the committee after Hiroki had a fall out with them. Lala is now the "dorm mother" to Sidonia's cadets; due to her bond with Hiroki, she took a personal interest in looking after Nagate Tanikaze.