Shocked Rob isekai journey of a reincarnator(on hiatus)

Rob was doing some paper work when he accidentally dropped his pen and it landed on the mc's head after realizing this rob decided to do what any other Rob would do, reincarnate the guy with some wishes but something is wrong

Rob:Hello mortal I-

Mc: IT'S BEEN A BILLION YEARS

Rob: oh I am so sorry for that

mc:*sigh*

Rob:So I was say-

Mc: I know how this works now your gonna say you dropped something and I died

Rob:Ho-

Mc: I am a reincarnator I know this shit

Rob: Wai-

Mc:I will take my wishes and be on my marry way

Rob: Wait wait wait PLEASE EXPLAIN???

Mc: *sigh* Alright

What secrets is the mc going to reveal
How reincarnated the mc
Why is he so indifferent
and what is the author smoking to make this story
find out on the next episode of
Life of The abridged reincarnator

note:-i only own the oc and any new fantasy world I would and the story includes Multiversal travel