Meteor Street uses its dirty appearance to cover up some precious things that people can only ask for.
One of them is called "partner"
Ciel Roman, who is known as "Eternal", met them, and the time that had stopped moving began to move forward.
As she watched the small spiders slowly turn into large spiders with death scythes, she knew that her life was about to end.
She doesn't need to teach them anything. They already understand the cruelty of Meteor Street.
She only has to teach them:
The betrayal was there from the beginning.
So she gave her life
If I can, I will
Protect you for life