|"Rants" by Akira|
Miso Soup is one of traditional Japanese foods. It is a soup with miso (made from soy bean) and some vegetables (potato, tofu, an so on). It's pretty easy to make and I don't know why Kotone needs any help with that... Onii-chan's "ORO~" is a joke from "Rurounin Kenshin". The main character likes to say "oro" when he is beaten up in a comedy mode.