MTL - The Counterattack System is Only Available In the Mahayana Period - Chapter 20 "One Hundred Ways to Get a Man to Take the Initiative"

As a precocious child, Lycoris suffers from a strange sense of deja vu. On the day her father told her about her fiancé, she realizes that her fiancé was a character from an otome game she once played in a previous life.

Jung Sunwoo was an average man. He had just taken his first job at W&U, a celebrity management company, as a manager. He could finally achieve his dream of being the manager of a world-famous actor or actress. On his way to work, he fell into what appeared to be a lucid dream about his future. As he went on with his day, he realized it may not have simply been a lucid dream.

Crossing to One Piece world, he became Roger’s younger brother.

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.