Mika

Mika was the wife of Silver Fullbuster as well as mother of Fairy Tail Mage, Gray Fullbuster.

History
Not much is known about Mika, other than the fact that she was killed along with her husband during Deliora's raid in Brago. After Silver was brought back to life by Keith, he built a grave for her and her son, which he frequently visited. Her death devasted him to the point that he learned Devil Slayer Magic to avenge her death. After Gray, who he thought dead, defeated him in a fight, Silver asked his son to kill him so that he would reunite with Mika.