MTL - This Game is Not Easy - ~ Pseudo four

The antique market that is filled with treasures and trash.

A tree of 10,000 flowers, the world is the door.
The spells change a lot, but the hearts of the people are unchanged.

- Description from Uukanshu translation

What will you do if you were transmigrated into the novel you were reading.Alex, an ordinary boy was faced with this reality as he was transmigrated into the novel he was reading. But there was a surprise there as he was not the main character or even one of the side character. He was an extra.*Ding[*Welcome to ARCANIA][Successor of the Apex]He became the successor of the strongest being in the world and was given a chance to live a whole different life than his past and he gladly accepted it as his past life was anything but good.But will his life be like those extra's who became cannon fodder or would it be whole different life ?Could he became powerful enough for a threat bigger than demons?****1-There no harem in the novel.2- Our mc is overpowered and there will be no hiding of strength at least to some extent.3 I am new at writing so please if I make mistakes do tell me.