“Fiftieth Vow”
Yuito Nishi has lived this life before.
And before that.
And before that.
A modern Japanese man cursed or blessed with regression, Yuito awakens again and again on the morning of his wedding, carrying memories of every life that followed. University. Marriage. Wealth. Power. Death.
Forty-nine times, the outcome has been the same.
He marries the Nishi heiress.
He takes her surname.
Unlike other regressors, Yuito does not seek redemption.
He does not save lives.
He does not mourn.
Each regression only sharpens him more calculating, more detached, more convinced that the world exists to be used. His true devotion is not love, but control. His only constant is his belief that he is entitled to win.
On the 50th regression, something goes wrong.
Yuito wakes on his wedding day as usual
but the bride does not arrive.
For the first time, the loop has changed.
WHAT MAKES HIM DIFFERENT?
Regressed 49 times
Fully aware of future outcomes, patterns, and social leverage
Treats regression as a strategic resource, not a curse
Makes plans for future regressions
Shows no emotional growth, only refinement
Views people as investments, liabilities, or tools
Yuito believes fate is something to negotiate with.
The Gods disagree.
YUITO NISHI
Name: Yuito Nishi (西 結人)
Age: Early 30s
Nationality: Japanese
Occupation: Corporate executive / heir by marriage
Status: Chronic regressor (50th cycle)
Appearance
Tall, well-proportioned, impeccably groomed
Black wavy hair,
Sharp, observant grey eyes that miss very little
Calm expression that reads as gentle to outsiders
Carries himself with effortless confidence and quiet authority
He looks like a man who has never had to rush, because he’s already seen tomorrow.
BACKGROUND: Before the Regressions
Yuito was not born powerful.
He grew up middle class, intelligent, ambitious, and painfully aware of social hierarchy. From a young age, he learned that effort alone was never enough, connections, appearances, and leverage mattered more.
He excelled academically, not out of passion, but because it was the most efficient path upward.
His first regression occurred after his death in a car accident on New Yea...