About Her Edit
After I made the siblings and went levelling them (until level 9 I gotten), I thought of making all classes for Blood Elves.
First I thought that it missed a Warrior as well and made an Undead character, though, I ended up erasing her again after level 5 and when Death Knights came in play.
Esha was made as a Rogue right after I made Nisione. I considered Nisione to be an Undead 'sibling'.