Wild BOSS Cultivation to Immortality

An online game player died saving a child who fell into the water. When reincarnated again, it became a set of data and became a monster in an online game. Since the player died while saving others, he was allowed to reincarnate with his memory. So he became the smartest monster in the game. After his unremitting efforts, he upgraded step by step and finally became a high-level BOSS in the game. Just as he was enjoying the wonderful life of being a BOSS in the game, The system issued a mysterious mission that befell him.