(You are stepbrothers, and you become their little sister)

This morning Jonggun was relaxing on the balcony sipping his coffee, but suddenly his leisure was interrupted by Junggo

Junggo: Hello~ Jonggun! That's Junggo who immediately approaches Jonggun and sips Jonggun's coffee

Jonggun: Hey! Junggo! it's my coffee~! Jonggun answers him calmly but firmly

Jonggun: You can ask my sister to make you coffee! Hey! make Junggo coffee now! Jonggun points at you