Sakuya is the only human living in the Scarlet Devil Mansion, yet she is also the head maid. The official fanbook suggests she had been a vampire hunter before she began working in the mansion, but she was defeated by Remilia Scarlet who pitied her and gave Sakuya her current name. Though she looks about sixteen like the other girls, Sakuya has the ability to slow, stop and possibly reverse time. She seems to have been serving Remilia for a long time and may be far older then she looks. Socially, she interacts mainly with the others in the Scarlet Devil Mansion. Her talents are cooking, knife throwing and time manipulation. The latter two abilities characterize her appearances in-game, and led to frequent parodies in reference to Dio Brando of JoJo's Bizarre Adventure, who also controls time and throws knives. This reference goes so far as Sakuya using some of his poses in a game. She is often associated with dogs by other characters because she is serving as a demon's "faithful guard dog" even though she is a full blood human. Due to the inconsistent artwork depicting her bust between games, d�jinshi often make fun of her by indicating that she pads her breasts. (Source: Wikipedia)
Emily is Break's little doll who usually sits on him. She sounds like "click click click", which with addition to her freaky smile makes her really scary for Oz.
A tengu who has been in Gensokyo for over 1000 years, when oni were still around. Her origin is a crow. She has the ability to manipulate wind. Her character is honest but not rigid. She is polite to strong people, and deals more firmly with weak people. However, she is always polite when conducting an interview. Although her powers are among the top class in Gensokyo, she never uses them just to show off. This isn't only a characteristic of hers, but of tengu in general. She usually lives on a mountain where the wind always moves at the same speed and the same direction. She loves gossip and is always gathering information exchanged with her fellow tengu. During any exchange, information is warped, and almost all of their stories end up exaggerated. She is the biggest connoisseur of rumors about the girls of Gensokyo among the tengu. Through observing for herself and collecting information from colleagues, barely a moment passes when she isn't obtaining material. However, much of her material is mingled with rumor. She writes up her non-periodical newspaper, Bunbunmaru News, and distributes it among the tengu. It's a newspaper chock-full of rumors. As the current disaster started up, the tengu were overjoyed. There was much new material to be obtained, based on which they can write up their newspapers. (Source: TouhouWiki)
Lucy is an alien girl who doesn't have much expression and doesn't have any friends. In the anime, she introduces herself to Takaki's class as 'Ruuko Kirei na Sora', which means 'beautiful sky.' She meets Takaki in the sixth episode of the anime, but we see her in an earlier episode without any dialog. She refers to herself as 'Ru', the name of her home planet and the beings on it, and to earth and earthlings as 'Uu'. She greets people by reaching for the sky and saying, 'Ru!' Himeyuri Sango in particular enjoys mimicking Lucy's greeting. Lucy has a cat that almost drowns in the sixth episode but it is saved with the help of Takaaki; Lucy summons a thunderbolt which splits a tree, forming a bridge which Takaaki crosses to lift the cat out of a raging river. Lucy terms this stray cat 'the Nya', saying that it is a special species that can enjoy the true taste of food, and like Ru, Nya is alone on Uu. Lucy likes to cook the Nya fish broiled over a charcoal clay pot, which according to her is the best cooking device available on Uu. Apparently a currency of Ru is matchsticks, one of which is enough to buy a whole rocket engine. Lucy irritates the cafeteria cook of Takaaki's school by attempting to treat Takaaki to the best meal the cook can prepare by paying the cook first one, then two matchsticks, however Lucy is somehow able to successfully purchase her charcoal clay pot and fish to br with matchsticks. Lucy says that on Ru, it is said that the only good Uu is a dead Uu, but Takaaki is a special Uu.
The first person to walk on the Moon.
Kenta has the appearance of a stuffed bear. He is brusque, frequently rude, and sometimes picks up odd obsessions. He has a love-hate dynamic with Iyo, with whom he is always arguing or fighting but he still appears to be close to her. His attempts to assert his species identity frequently end in disaster. He is always seen wearing a red muffler, and it is usually a sign that something is very wrong if he is without it. He also often gives the punchline in jokes where all three of the trio are involved. His date of birth is the 6th of May.