Priest apprentice Yuxing is timid and fearful, and just wants to finish copying the star map safely. But he was thrown off the altar to be sacrificed, and fell into a time-warped lost island - where the three suns are in the same sky, and the ancient Mayan pyramids coexist with the wreckage of the future.
He awakened the ability to deduce time, and every prediction consumes his life. After rescuing the mysterious female warrior, the two built a shelter in the chaos of time and space to fight against the crazy experiments of the old god "Shadow of Quetzalcoatl".
But his countless deductions all pointed to the same ending:
Only if she dies can everyone live.
But he concealed the result of the most profound deduction——
She is not human at all, but the "human side" of the old god.
Kill her, everyone escapes, and he becomes a hero.
If he doesn't kill him, he will be trapped here forever, and he will be buried with him.
His deduction machine never failed.
Only this time, he wanted to take a gamble.
