After Ketis graduated from the University of Ves, nothing much changed for the pair. Technically, Ves should have shooed her out of his nest and cart her back to the Jaded Sword.
Yet neither of them brought up the topic of leaving. At her current state, Ketis wouldn't be of much help to Mayra back at Lydia's Swordmaidens. She played no substantial role at the Flagrant Vandals either, but she continued to pick up little lessons here and there simply from osmosis by staying in his presence.
Ves found that he liked the companionship of another mech designer regardless of their skill level. While he benefited quite a lot from bouncing off the ideas of someone more skilled like Iris Jupiter from the Vesian Revolutionary Front, he also gained a surprising amount by rehashing basic concepts to his student.
