Natsu-chan, a cute girl with a smile who lives in the neighborhood. Her uncle bought her some juice and she opened up a little. She seems to be naturally curious. Do you want to get along better with your uncle? What then? Nacchan, who was an honor student, transforms into a dirty little schoolgirl! My uncle was so happy that I accidentally threw it all the way into Nacchan's real juice. Don't hate Uncle Natchan, okay? Let's play together a lot from now on!
