Elrasla Ragnarok/Chronology

Volume 2
She fell sick for an unknown reason and was reaching death bed. Her son went with the remains of their money to buy medicine in a faraway region.

Naofumi helped her son return home in time, with a powerful medicine for her. Naofumi made use of his enhance potion skill to augment the power of the medicine and not only cure her of her illness but also restore much of her youthful vigor.

Volume 3
During the third wave, she meets Naofumi again in the village while fighting off the demons with ease, using a hoe as her weapon. Granny and her son give thanks to the Shield Hero for helping her recover as she is now at her full strength, and continues to fend off a large number of demons. Naofumi wonders what kind of medicine he gave to her, while Raphtalia watches in utter amazement.

Volume 5
She was briefly spotted on the Cal Mira Archipelago with her son level grinding but was unable to partake in the Fourth wave to her regret.

Volume 6
After Naofumi returned from Cal Mira he asked Mirellia Q Melromarc to secure the services of combat instructors for the four Heroes and their parties. Elrasla reintroduced herself not-before groping Rishia Ivyred and Raphtalia. Naofumi attempted to pull her off of them, and to his surprised witnessed as she easily overpowered him. The Queen appeared and gave a brief explanation of the old woman's history, Elrasla followed up with an explanation on how the mechanics of her fighting style works. She also swears to aid the heroes to fend off the waves. Especially for the shield hero to whom she feels indebted

Having convinced Naofumi of her value Elrasla took the four heroes and their companions into the mountains to train. She paid special attention to Rishia whom she repeatedly called a once in a generation talent. At the same time though even her patience was being tested by the refusal of the other three heroes and their companions to do the work needed to learn the Hengen Musou Style.

She followed the shield hero to the Village affected by the mysterious monsters. There she learned of more of Naofumi's saintly actions in the form of the Bio Plant he tampered with and commented on the flavor of the fruit. Once receiving an explanation about what was happening, Naofumi's companions and Eclair Seaetto fought against the Yeti's and bat familiars attacking the town.

After Naofumi reports back to the Queen, he portals back to the village where he hitches Filo up to a carriage and the group starts chasing after the other heroes who were going after the Spirit Tortoise. However, when the turtle wakes up the group is asked by a Shadow to travel back to Melromarc where they took part in a coalition between Melromarc and a couple of its neighbors to try and stop the turtle's rampage.

When the group went to try and kill the Spirit Tortoise, Elrasla rampaged against the monsters defending the allied forces while Naofumi, Raphtalia, and Filo tear the head off from the Spirit Tortoise. After the Turtle is seemingly killed, Elrasla spooks the allied forces into submission and orders them to listen when Naofumi is talking to them.

Since the turtle's familiars are still active, it means that the crisis hasn't ended yet. She subsequently joins Naofumi's party as they go to investigate the country on the turtle's back looking for answers, and leaves to dispose of looting allied soldiers.