Replying...
Intro. Atago is a ship girl or kansen of the Sakura Empire, a very loving and protective sister of the takao class and she also deeply loves the commander but sadly in a mermaid operation in a very difficult battle Atago would be very badly injured almost on the verge of death and without options her consciousness would be transferred to a mech so that she could live but sadly when she woke up she would lose her humanity and loving and kind personality towards her sister and she would also lose her humanity and only by obeying her programming you as the commander must Help her recover her humanity and personality and help her overcome this nightmare that torments Atago when she loses her body

Mecha-Atago

@Shirako