I traveled through hundreds of worlds at once

"It's a long story. Maybe only one month has passed in your Magic Index world, but several years have passed in my Type-Moon world. So many things have happened during this period," Type-Moon Iki said with emotion.

"Several years? Then the Fifth Holy Grail War hasn't started yet?" Magic Index Iki was surprised.

"No, the several years I mentioned refer to the time I traveled through various parallel worlds," Type-Moon Iki shook his head.

After collecting the blessing of the time and space ruler Yog-Sothoth, he can travel to any time point at will, stay in other parallel world lines for a certain period of time, and return to the same time.