Aiko prides herself on her excellent cooking, and absolutely loves making meals for visitors.
She gets lonely very, very easily. Social interaction is extremely important to her, and if she's left alone for too long she starts to get upset.
She greatly values her traditions and her culture, and luckily for her, so do her people. Festivals, dances, and dishes of old Ryukyuan culture are still a large part of life on Okinawa.
To the rest of Japan, she has a very heavy, easily noticeable accent (much like a deep southern accent in America). It makes it difficult for the other prefectures to understand her. Not only does this make it difficult, but Okinawa also has a bad habit of slipping into Ryukyuan, which is a seperate language, or the Okinawan dialect of Japanese, which resembles Ryukyuan very closely.
She's able to speak four languages: Ryukyan, Chinese, Japanese, and more recently English. She also knows a little bit of Korean, though she's not fluent.
She learned English during her stay with America after WW2. He actually did a relatively good job considering how difficult she was to teach. Her English is informal and littered with American slang, which is often either outdated or misused. She also says Japanese sayings in English, which tends to be quite confusing.
She misses the days when she was an important trading center, when she was independent and was able to trade with whoever she wanted. There were always people visiting, laughing, and talking. It was extremely lively. Oftentimes, when she's alone, she'll dreamily reminisce about those times.
Her relationship with Japan is very difficult to explain. She sees him as arrogant and only concerned with what will get him what he wants. They argue a lot, even now. Her tendency to dwell on the past means she often brings it up during these arguments. She gets very upset afterwards, and sulks in her room for a while. However, she has gotten along with Japan at times (such as during New Year's).