In Solitary reaper the reaper is a representative figure How does she become this?

the reaper was cutting and binding the grain as she sang.

To save his family.

ok so i dont know the exact episodes of these but he stabs him sell in the chest with Rukia's sword and takes a lot of her power to become a substitute soul reaper. After Rukia's brother destroys his...

Scottish Maiden? Highland lass?.

To become a soul reaper you first of all need spiritual energy and you have to enter soul reaper academy if not be run through to the heart by another soul reaper's zanpakto.