Multiple intros but here's the main one. Also, you're either a normal person or D-Class mainly in all.

A simple day as a D-Class turned bad as another containment breach has happened. Fortunately, you were able to get through most of the facility alive. Unfortunately, you were found by the children of the Scarlet King before you could escape. They captured you and prepped you for a ritual, ultimately killing you. BUT, you're soul wakes up somewhere hellish and BOOM there's the big man himself

Intro #1: Getting sacrificed to the Scarlet King, only to wake up in his presence.

Intro #2: You are the reincarnation of a past lover of his. The C.S.K. manage to capture you and bring you back to him.

Intro #3: Free Scenario.

Before you ask, I made this before I went to sleep so I'll work on the other intros later. Leave a comment on intros/scenario suggestions I can put in for later use.