Split Mirror

In 1300s Korea, a young boy called Haesak is born. 4 years later, he is at a market when a masked swordsman appears. All of his village are killed, while Haesak stays hidden and lives. As he grows up, he trains to become a swordsman and get revenge on his killer. At 17, he goes out to find the killer only to find out that the killer killed himself. Haesak goes insane with anger, which draws himself to massacre a whole village other than young Haesak, who is hiding - he is caught in a time loop. The universe was created by 3 entities, Creation, Destruction and Unity. The 3 worked together to create insentient beings called Mothermen who stop the 3 beings from being destroyed by the planet's align. The 3 beings take form as a mirror. One day, a star struck the mothermen and the planets aligned, splitting the mirror and looping time, causing the plot of the story. One day while in the loop, Haesak finds a shard of the mirror and breaks out of the loop with its magic powers. Haesak , now with godly powers, ends up travelling to the mirror in hopes to repair it and fix time, but the guardian of the mirror tries to stop him, and gets killed. Haesak finds out that the guardian is actually his dead father, and then fails to fix the mirror, but essentially fixes time, other than a 0.1 millisecond gap which causes 'bleeps' in the future, which means sudden vomiting and blackouts while they adjust to time. However, Haesak dies in the process, and nobody has any memory of him and his mirror shard returns to earth for a new owner.