MTL - Instead of Checking In Regularly: I Hide And Cultivate In The Monster-quelling Tower And Become Invincible

Blue Star has entered the extraordinary era, everything is evolving, and monsters are rampant. Humans awaken their star souls in evolution to fight against raging monsters. Zhou Xuan, who was doing odd jobs in the Demon Town Tower, accidentally awakened to an unscientific sign-in system. Sign in on the ancient desolate beast and gain the power of the wild. Sign in on the weed spirit, and the star soul evolves into the nine-leaf sword grass. The thousand-year black turtle, the ten thousand-year sea king, the immortal true phoenix, and the sky-swallowing dragon have all become the targets of his registration. There are countless monsters in the Demon Suppressing Tower, Zhou Xuan signed in silently, and if he was not careful, he would be invincible. - Description from novelbuddy