SORA-595 A 45-year-old unemployed man becomes a younger brother and completely dominates an earnest female student by brainwashing her into squirting Azu Amatsuki

I have a bright personality, but I don't like studying. I know that recently boys have been staring at my breasts. And my family isn't wealthy... I don't want one. I can't tell anyone that I want to be a big sister and have a little brother. But it's strange. I've actually had a little brother for a long time, and although we don't live together, we play together a lot. When I tell my dad about this, he gets mad at me. All I want is a little brother. I hate my dad for saying I can't have hopes or desires. I'm going to play with my little brother again today. Because I'm a big sister