Kasasagi Watase

Birthday: September 22, 1997 (Virgo)
Blood Type: A+
Occupation: Captain of Team A of Rokumei City Fire Department's Special Elite Rescue Squad "SIRIUS"
Rank: Fire Lieutenant
Intelligence: High
Physical Strength: Very High
Hobbies: Unknown
Likes: Squadmates, making good on his word, value of life, black coffee
Dislikes: People who are all talk, acts of cowardice, words and actions that make light of life, hospitals
Enneagram: Type 5 "The Investigator"

Protagonist of √A. The captain of the rescue squad dispatched to the incident at "LABO" on request of the city.
...Or so he's heard, as he's lost his memories due to encountering some sort of trouble.
It appears he had a composed and logical (to put it in a bad way, dry) personality before his amnesia, but naturally, he doesn't remember that.

The story of √A begins with him waking up in LABO.
With him and his companions trapped ina desperate crisis without an escape route, he could not have awoken in any worse circumstances.
Prepared to do or die, he tries to search for survivors and find a way out of LABO, but the situation just gets worse by the moment...
Can he carve a path through this extreme situation? And what of his memories...?