Tsubaki Tamashiro  

, 珠城 つばき

A seventeen-year-old girl who is friends with Kenji, attends the same high school as him, and shares his class. She resides in a shrine with her grandmother and serves as a shrine maiden. Additionally, she works part-time at Build Base and acts as Kyos co-pilot on the Big Shooter. Her role is to provide Kenji with Jeeg parts. As a child, she would tease him and make him cry, but lately he has been infuriating her. Despite this, she genuinely cares for him until her typical tsundere violent attitude takes over.