Welcome to the beautiful earth! Bumiayu. Back then I used to speak flawless javanese. But now, you can’t even tell that i ever had medok accent (aku ora ngapusi iki). Bumiayu was the first place I learned about manner and etiquette. Javanese have different level of politeness in their language. They have kromo javanese and ngoko javanese. Kromo javanese used to talk with the elderly and someone that you should respect, whereas ngoko javanese is used when you’re talk to your friend or your junior. The same thing happened with Japanese and Korean. They do had formal and informal language.