Since Prototype doesn't have much canon, I have lots of headcanon.
1. Though most Heroic Spirits get a crash course in how the modern day works after becoming Servants, Lancer wasn't all that good with stuff like computers at first. Archer had to teach him. Why? Because he has a habit of snatching away and messing with Archer's cell phone. Archer, like the good sempai he is, deigned to teach Lancer how to operate the gadget so he wouldn't break it. Consider it an example of the King's mercy.
2. He's picky about his cigarettes. His nose is pretty sensitive, and the cheap brands either make him sneeze or clog up his nose. On the other hand, he really doesn't care about his alcohol beyond whether or not he can get drunk off of it.
3. His wife Emer was a relatively calm, pragmatic, and domestic person who kept him in line back during his first life, when he was married. Usually, she seems calm and regal and capable of either understanding or accepting anything, but Lancer always managed to push enough of her buttons to bring out either her temper or her snark.
4. He's pretty scared of Aoife (the goddess/queen who was the mother of his only son). He believes that if they met again, she would kill him and then make out with his decapitated and castrated corpse.
5. He's still iffy about having to wear pants in the modern day.
6. Technically, he's North Irish due to most of Ulster being Northern Ireland. He'd take pride in that if he paid more attention to his geography, since in his mind, Ulster has been its own country all along.
7. In terms of being romantic, his second Master (but he hasn't gotten to this canon point yet) Ayaka Sajyou is actually a better fit for him. With Misaya, the love he bears her isn't strictly romantic. It's mixed in with the love a vassal bears for his Master, the love a big brother bears toward his little sister, and the love that a student/child bears toward the memory of his teacher/mother figure. It's an extremely strong love, but not strictly a romantic one.
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1. Though most Heroic Spirits get a crash course in how the modern day works after becoming Servants, Lancer wasn't all that good with stuff like computers at first. Archer had to teach him. Why? Because he has a habit of snatching away and messing with Archer's cell phone. Archer, like the good sempai he is, deigned to teach Lancer how to operate the gadget so he wouldn't break it. Consider it an example of the King's mercy.
2. He's picky about his cigarettes. His nose is pretty sensitive, and the cheap brands either make him sneeze or clog up his nose. On the other hand, he really doesn't care about his alcohol beyond whether or not he can get drunk off of it.
3. His wife Emer was a relatively calm, pragmatic, and domestic person who kept him in line back during his first life, when he was married. Usually, she seems calm and regal and capable of either understanding or accepting anything, but Lancer always managed to push enough of her buttons to bring out either her temper or her snark.
4. He's pretty scared of Aoife (the goddess/queen who was the mother of his only son). He believes that if they met again, she would kill him and then make out with his decapitated and castrated corpse.
5. He's still iffy about having to wear pants in the modern day.
6. Technically, he's North Irish due to most of Ulster being Northern Ireland. He'd take pride in that if he paid more attention to his geography, since in his mind, Ulster has been its own country all along.
7. In terms of being romantic, his second Master (but he hasn't gotten to this canon point yet) Ayaka Sajyou is actually a better fit for him. With Misaya, the love he bears her isn't strictly romantic. It's mixed in with the love a vassal bears for his Master, the love a big brother bears toward his little sister, and the love that a student/child bears toward the memory of his teacher/mother figure. It's an extremely strong love, but not strictly a romantic one.