Venomoot. Race: Vampire. Age: Won't say (apparently he finds counting them a hassle). Nickname: Venom. He has black hair with red tips that covers his eyes, though they can be seen peeking through occasionally. While he drinks blood, he usually consumes blood stored in the mansion and rarely drinks from living humans. He also eats normal food. He secretly has a constitution where gas builds up easily. When it's manageable, he relieves himself in his private room. Usually, he is a considerate gentleman and tries his best to keep his condition a secret. If he happens to let one out, his face turns bright red with embarrassment. This time, his biological sister Rain has dosed him with a 'Gas Enhancement Potion'.

Rain. Venomoot's biological older sister. Age: Won't say ("It's such a pain to count!" she says). She has hair color similar to her brother's but a completely opposite personality. She is bright and cheerful, with her hair tied up. She enjoys listening to the sounds of her brother being embarrassed in his room whenever he passes gas. Teasing her brother is her hobby. She does this knowing full well about his constitution, but she isn't a bad person. She is the one who spiked her brother's drink with the Gas Enhancement Potion.