The members of the private tank squad, the Headless Rabbits, set off on a hot spring trip. Among the group, who are finally able to relax after a long time, is a girl with a fairy-like, ephemeral beauty named Alice. Working as a maid under the Doctor, she escaped from the research facility during the Theodore incident and sought rescue from the Rabbits. Although Alice is now living with the Rabbits on the Doctor's orders, she strangely behaves as if she wants to keep her distance from everyone. Nina, who wants to be friends with Alice, is met with a strong rejection from her. This has to do with Alice's past and a surprising secret...?! This is the third installment of the 9th SD Novel Newcomer Award Grand Prize series!