In Order to Become a Heroic Spirit, I Had to Do Things in History

It is a strand of silk that has been lost, and its real name is anno.
It drifted outside, and was transformed into a human form due to its influence, until it was retrieved.
Needing to maintain one's own existence, needing to save this world that has been in danger because of its own loss, the thread of the root of materialization has embarked on such a road - a person who has left a name in the history of mankind, this road.
But...is it really at the mercy of others?