Sebek is often mentioning Malleus, referencing him repeatedly during the Harveston event (Jade: “You truly care about Malleus, don’t you?”) and calling Idia a “slovenly” housewarden by comparison.
After falling into a ravine during the Harveston sled race Sebek reflects, “If only my liege were here. He’d just fly down elegantly without even using a broom!”
He also comments on Malleus appearing noble and dazzling in his dorm uniform and offers to share tales of Malleus’ heroics with the prefect.
He is pleased by his outfit during New Year’s as the refined appearance means he can stand at Malleus’ side without shame.
Despite (or possibly because of) Sebek’s diligent guarding, Malleus will still disappear without his knowing, and sometimes on purpose: Sebek loses track of him during Glorious Masquerade, the Tsum event, Book 6 and Book 3.
Malleus says that before Sebek enrolled there had been tasks that he had been doing himself in order to learn how to become more independent, but due to Sebek’s eagerness to serve there are several that he has now entrusted to him.
Malleus says he is now capable of using both washing machines and dryers, having gotten in practice by going into the laundry room late at night or early in the morning when everyone is asleep.
Sebek expresses concern after Malleus magically restores Vil’s youth, apologizing for overstepping his bounds when Malleus asks if he thinks losing such a paltry amount of magic would drain him.
Malleus says he is astonished by how much Silver and Sebek have grown, as he had thought that they were still practically toddlers.
Twisted Wonderland Reference Note 