Trip to death

Intro
Error of system, non existence of death
Code name:Pluto
Real name: Layla Christine

Layla, 25 year old, orphan who lost both parents at the age of 5 during an accident.

She got adopted by the secret agent Mr Nickson who was a colleague of her parents.

She was under his care for about 20 years and under his guidance she became an SSS class Assassin or in a game language a max out player.

Due to losing her parents she was traumatised by the accident which happened on the day of her birthday, which led her to hate herself.

She became cruel and blood lust in each upcoming mission which was given by the 'Home' agents, for whom she worked.

But at the last mission she heard a weird sound and made unexpected decision which changed her life after death.

Underworld

Dualea a well systematic grim reaper who is stringent about rules. Having no trouble with the mortem count as usual.

Suddenly the system start ringing
"ERROR.ERROR."

She knows for sure who caused this and that has to be by Dwyane Christine.