A ring is put on the finger. One precept hides three doors, and one night is worth a year.
Inside the first door are endless books. Hacking, finance, fighting - knowledge is power. I used it to overthrow that man-eating company, and also met her in the sea of dust.
But I didn't expect that this ring was a debt. A ten-year period is a promise.
The second door... That world, those people, come and go, I can't catch them.
Later I returned to Earth, the Earth more than two thousand years ago.
When the third door opened, I realized——
In this life, I do not seek eternity or immortality.
. . . . . . .
I will pay back what I owe. But what you owe me must be paid back tenfold.
