Official character description would have Thunder down as a girl void of facial emotions, she always speak with a neutral and calm voice. She often expresses her emotions with the powerful gun shots, because of this peculiar hobby she have quite the demand for destructive weapons.
Thunder's first story appearance was a minor character in the event Singularity. Thunder is one of the five T-dolls who represented Girls Frontline during the DJMax: Respect collaboration event: Glory Day, as a main character, she had major interaction within the event.
The hidden level of Singularity chapter 1 begins with AR CZ2000CZ2000 briefing the Commander about a Sangvis Ferri command post she had located in the field. She details her plan to destroy the post, requesting units to assist her in eliminating the enemy. During their conversation, Thunder interrupts the two over the radio, presenting the complete structure map of the command post, as well as information on where enemy forces would be located in and around it. Thunder stated that it would be unwise to confront the enemy directly, suggesting a new route that would encounter less patrolling units.
CZ2000 is unhappy with the interruption, as well as Thunder referring to her as “Crabby” (a nickname given to CZ2000 by SMG SkorpionSkorpion ). However, she states that she will carry out whatever set of orders if the Commander chooses, be it Thunder’s plan or hers.