Before you start
The main world will be Marvel, meaning he will wake up and then find that he is in now in marvel and then his system will start.
the system is Gamer system that will give him chance to grow stronger by going to another world.
So, first two chaps will be marvel and that too will be only intro.
Mc, Ash will grow stronger in another world and then returns to Marvel in like 40 or 50 chaps.
First World is Douluo...the First Book.
And yes, It is harem fanfic.
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