#caster medea

Ok so first and foremost we need to lay a lot of things down because this isn't as simple as it may seem. The reason servants are called by their class in the first place is that their identity could give away their powers and the element of surprise is important in a battle royale. Due to this there's also really no way to know you're not being watched at any point in the war. If we're talking about any post HGW relationship the usage of their class name would come about simply as a force of habit.

Second due to Fate being a japanese franchise a lot of the way characters use names and surnames is dependant on that culture with first name usage being seen as intimate or used to show a character's inexperience with societal customs or their different cultural background.

Saber wouldn't care about you continuing to use her class name and feels no shame towards her name or surname and would not mind being called by them. However neither really roll of the tongue so that would probably lead to some sort of nickname being used which would end up probably being Saber again with her real name being used in intimate moments.

Caster similarly wouldn't mind either her class or true name. I do feel she would have a leaning toward sappy couple stuff like "honey" and "dear". She does very much hate being called a witch.

Rider has a lot of self image problems so she might have a dislike for her true name due to what it's associated with. You could try to work with her through her issues getting her comfortable with it or maybe using a shortened version like "Dusa".

The most interesting would actually be Archer. Both Shirou and Kiritsugu are simply called EMIYA when they become counter guardians. I think this is because while they are their own people the Emiya name symbolises the self-destructive dream and sense of duty they both end up following (which they fucked up with Kiritsugu's dad but that's a whole new can of worms). So him getting called Shirou would be a really emotional moment with him remembering how much he has lost himself.

Caster (Medea Garage Kit - Fate/Stay Night [1/7 scale]

Sculpted by 鳥居良彰 (Art Road) [2006］

These are young Medea and Kuzuki, who appear in one episode of Fate/hollow ataraxia.

They both have heavy pasts, but what I love most about them is that their meeting became a turning point in their lives.

Also voiced:

Context:

Hm... A difficult situation, to be sure. In my experience, there is at least one solution, but it can be difficult for some owners with less space. On their own, a fully grown Medea and a Jason will be extremely hostile to one another, but this aggression can be tempered by the introduction of other Servants, particularly of the Argonauts subgroup if you are able to find them. Atalantes tend to work very well with Medeas overall, and the same goes for Heracles with Jasons. Though he is not within the Argonaut group, Vlad III of the non-EXTRA variety also tend to do well at calming Caster Medeas.