410 is a kid who speaks arrogantly due to her rough personality. Her personal hobby is laughing at people who are serious or not relaxed, which is why she likes Lucifer and Siesta 45. Even though the way she speaks is rough, she actually likes company, as she easily succumbs to loneliness. She gets depressed if she isn't always being ordered by someone. 410 has excellent capabilities in fighting control, and exhibits unmatched battle prowess even at close quarters fighting.
410 has the same outfit, red eyes, and bunny ears and tail as the other Siesta Sisters. She has short, light blue hair and has a goofy grin on her face. Some parts of her outfit have a blue color scheme.
- Member of the Siesta Sisters Imperial Guard Corps
- Subordinate of Siesta 00
- Comrade of Siesta 45 & Siesta 556
- Like the other Siesta Sisters, 410 is named after a firearm round, in this case the .410 Shotgun round.