Backstory of Mono and Chrome:
They were originally human, until of their random disspearance, they both woke up in the lab by being an experiment, they got infected by the virus, but its clearly unknown, since its redacted aka not allowed to know the virus, When they got infected they got ADHD, so they act so weird, funny, and energetic, the disspearance was unknown, but its been discovered in this lab called: Engerneering of Infection, also known as EOI, but the scientist who experimented Mono and chrome died, because they did something... not meant to say... i will call it like.. gore... and Mono and Chrome explored, everything.