After some years/decades of book & paper & pencil & dice role-playing games (RPGs, (Advanced) Dungeons & Dragons (D&D) etc.) 'mage' became popular abbreviation of 'magician/'magic-user': all generic/sex-neutral, derived from Persian-Greek male magician word, magus, and 1980s D&D also (re)constructed (based on same languages) female equivalent maga. Fine to say 'mage', but I think in ancient times (Dark/Mediaeval/Viking, whatever age/era of Asian-type countries (Classical?) in Tribulations of a Magician (ToAM)) if using non-generic noble/royal titles such as 'Lord'/'Emperor' & 'Lady'/'Empress', I argue they'd likely say 'magus' & 'maga' (sometimes preceded by 'Arch'... 'magician' seems more common outside 2000s games... at least more classic fantasy literature). My D&D (1990s) gaming groups moved to newer/abbreviation terms I consider overused, so I went back to 'magician', 'magus'/'wizard' & 'maga'/'witch'.
In some RPGs, fighter-magician characters (ToAM main character (MC) Tomas, etc.) get combined titles: Lord Magus/Wizard (or Lady Maga/Witch)... clearly Tomas is still pretty good fighter, but I guess not focused on it, and if I recall correctly (IIRC) some call him 'Lord', so I'm not saying expand title, but if non-player characters (NPCs) want to be very formal (standard when first meeting important person) perhaps they'd use long titles... often royals' ones are quite long (one was <name> by the Grace of God, of the United Kingdom of Great Britain and Ireland and of the British Dominions beyond the Seas, King, Defender of the Faith, Emperor of India) which might add interesting setting details such if emperor & empress have long titles (or Tomas gets military leadership position).
Whether formal/long titles get used, I'm more interested seeing love interest (LI) ladies with (option for) more vulva hair... less popular after popularity of pornography on Internet, but also fits setting (and more popular among older gamers, still large audience). ToAM is often closer to such old style anyway.
That being said, ToAM is excellent how it is: excellent art/writing... of 25+ science fiction & fantasy (SFF) visual novels/games I played, ToaM (haven't played his SF yet) is in my top #1 favourite category (equalled by only two or three others, including The Sorcerer).
