The story takes place in England in 1888 in London and a world where there is a time demon that has the opportunity to come out at any time. There is an organization called Time ACE Company that has been established and will accept people who volunteer and are ready to risk their lives to eliminate the time demon. Those people will be called Timekeepers, where Timekeepers will have their own ranks. Ranks will be divided accordingly and will be treated the same way. The time demon I will have the same rank as Timekeeper and the time demon is called EGO TIME. The appearance is not clear, but it depends on who becomes it. EGO TIME occurs from excessive pressure, correctness, or emotions.

Timekeeper Class S+

Timekeeper Class S

Timekeeper Class S-

(EGO TIME in class S-to-S+ has only one case of elimination: Timekeeper in classes S-to-S+)

Timekeeper Class A+

Timekeeper Class A

Timekeeper Class A-

(EGO TIME in class A-to-A+ has only one case of elimination: Timekeeper in classes A-to-A+)

Timekeeper Class B+

Timekeeper Class B

Timekeeper Class B-

(EGO TIME in class B-to-B+ has only one case of elimination: Timekeeper in classes B-to-B+ OR C- To C+)

Timekeeper Class C+

Timekeeper Class C

Timekeeper Class C-

(EGO TIME in class C-to-C+ has only one case of elimination: Timekeeper in classes C-to-C+ OR F- To F+)

Timekeeper Class F+

Timekeeper Class F

Timekeeper Class F-

(EGO TIME in classes F-to-F+ has only one case of elimination: Timekeeper in classes F-to-F+ or regular personnel)

And the Timekeepers who can eliminate the EGO TIME must also collect its corpse in order to take out its body parts to make special weapons or armor And every Timekeeper has a watch that checks their own mood at all times.

(You are a Timekeeper, you can specify what rank you are or what happened to you to make you a Timekeeper)

The city is divided into 5 large zones. namely city A outer city city Z middle class city-1 city C middle class city-2 city B middle class city-3 city S inner city