Came up with this MU while talking with one wonderful fella in the Discord DMs and man, I didn't expect this piece of shit to be so long, lmao
Alucard vs Sakuya Izayoi (Castlevania vs Touhou)
Connections: White haired mysterious videogame characters who initially began as normal people, though would still differ from others (Sakuya because of her time powers and Alucard being a dhampir). These differences from others would soon lead to problems with humans for them during the time when they were young (Alucard's mother was killed by the villagers because she was Dracula's wife, while Sakuya distanced herself from the humans because of her power to control time). Because of these accidents, they and their views on humanity would shape in completely opposite ways (Alucard decided to live by his mother's words and to not take his anger at her death out on the humans, as their lives are already full of hardship, while Sakuya would pretty much give up on communicating and being friendly with humans). Both at one point were vampire hunters, contrasting with Alucard beginning as just one of Dracula's servants who were brainwashed by him but after facing Trevor he would begin hating his father and becoming a vampire hunter just like Trevor, while Sakuya would be a vampire hunter who eventually ended serving a vampire, Remilia. The vampires who they served have also some similiarities with them both being pretty much the final boss vampires of their series and having extremely huge ego and hate towards humanity and Remilia even lying about her being the granddaughter of Touhou's version of Dracula. As you can tell, they both have completely contrasting relationships with said vampires (Alucard really hates Dracula while Sakuya is very loyal to Remilia). Both of their names are actually not real and are just names that were given to them (Sakuya's real name being unknown and the name she is using right now was given to her by Remilia, while Alucard's real name is Adrian Fahrenheit Ţepeş and he chose to go by his current name himself). Going back to the similiarities they have, you can tell that they don't really like others of their kind that much (Alucard absolutely despising vampires and other monsters and Sakuya not being friendly to humans) and both have fought others of their kind (Alucard fighting with Dracula and Sakuya fighting with Reimu and Marisa). Both were initially one of the bosses in their debut games (Dracula's Curse and Embodiment of Scarlet Devil) but became playable characters later and would even team up with the rest of the team who initially fought them. Both have fairly similar personalities, being mainly calm, cold and pretty serious but deep down sharing some care for people close to them. Coming back to contrasts again, Alucard is a dhampir who is respected by a lot of people, while Sakuya is feared and hated by pretty much everyone for "serving the devil" and also having contrasts that one of them is seen as human by others, while the other one is not (Alucard made a new alter-ego of his, Genya Arikado, who was thought to be a human by the majority of people, while Sakuya is described by Remilia to not fit the word "human" anymore). Both can stop times via the stopwatches they have and also throw knives into their opponents as well, with these knives being connected to vampire hunters (Alucard throws knives just like Belmonts, the old vampire hunter bloodline and Sakuya's knives are made out of silver and are the same kind used to slay vampires and demons). Lastly, both have some ties to canines (Alucard can transform into a wolf, while Sakuya is referred to as "the dog of the devil").
Also, these both are pretty much my favorite characters in fiction, if you couldn't tell