ONEZ-205 My sister is a naughty exclusive maid Vol.002 Nao Kiritani

I have an older sister who is a childhood friend of mine. - Nao's name. - She has excellent grades, good looks, and is truly a high-class person.Moreover, her family was wealthy, but her parents fell into debt and evaporated. - Now, my sister will become our family's exclusive maid... - However, after we started living together, I realized that my older sister was very vulgar and lewd...I wonder what will happen next! - ?