Beast Control: Starting Contract Rusty Slime

During the awakening ceremony, my talent was rated as the most useless level F [Time Perception]. The Contract Beast is a rusty slime that doesn't even have any skills. Everyone said that at most I would be a warehouse manager in my life. Until the academy competition, I used the rust residue of slime to jam the throat of the champion Flame Dragon Lizard. Until the national competition, I reversed the inevitable defeat at the last moment of the referee's countdown. Until the alien world invaded, I sat on the throne made of time marks and whispered to the thousands of mythical beasts behind me: "Look carefully - this is how time is used."