This Wizard Tower Is Far Too Sinister!

After transmigrating onto a broken ship, Youlika finds himself a cursed doll, a supernatural object about to be hauled away and dissected. But he stays calm. He has the [Wizard Tower Construction] System. As long as he turns the ancient, battered R'lyeh into a world-famous academy at sea, he can gain incredible power! And so... The most sinister wizard tower ever was born. A science teacher with a fishbowl for a head, a nursery where bones can bring the dead back to life, a history library filled with maddening whispers... Everyone fears it, and everyone covets the treasures hidden within, chasing after them like mad! In response, Youlika Ludwig, mobile calamity of the seas, captain of the R'lyeh and master of the wizard tower, evil god who commands filth and purity, and shapeshifter, says: “Welcome to my academy... But I can't promise you'll leave with your sanity intact.”