Fire Emblem: Three Houses.
- Jeralt - Father of Byleth, Jeralt was a previous leader of the Knights of Serios before leaving to start his own mercenary band. He later rejoins the Knights of Serios.
- Catherine - A formidable swordswoman, Catherine is a powerful knight in direct service to Rhea. She wields the powerful Thunderbrand.
- Alois - A knight who served under Jeralt when he was leader of the Knights as his self-proclaimed "right-hand man". He is known for telling bad jokes.
- Gilbert - A reserved knight who is difficult to get to know, but is polite to those acquainted with him.
- Shamir - A former mercenary who joined the Knights as a means to repay Rhea for a debt. As a rare quirk, Shamir is not devout to the Church of Seiros, only to Rhea herself.
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