Side-Character's book of evolution in a survival-game world

In 2024, A voice came from nowhere and transported half of the earth's population into a survival game world with a goal. - To Survive - The new world was full of danger but also bring the opportunity to humankind to evolve. Follow our protagonist's journey, who has been mocked as a side character all his life in his journey to be his own story's main character. "I was born all my life as an average guy. Average score, Average look, and everything were average. All my friends mocked me as a side character, but now I received the book of evolution. With the book of evolution, I could induce the evolution of the monster tamed by me. Now is my time to raise from a side character into the main character of my story." The cover is not owned by me, it is from Zerochan art. To my previous reader of Ray's story, if you want a story without an annoying system, please try this one ^_^