START-192 _Her half-sister Ema Yano

Ema left her hometown and moved to Tokyo a long time ago. After tiring days in the city, Ema decided to give up her job as a swimsuit model and return home for a while. Her previous busy work caused Ema to have an unhealthy lifestyle. Hajime is Ema's younger half-brother, it's been a long time since they last met. The younger brother that Ema used to bully has now grown up and is in his prime as a man. Of course, he's still as shy as ever, so he still doesn't have a girlfriend. Now when he meets his sister Ema, who is extremely beautiful and seductive but often refuses to wear underwear, what will Hajime do with his boy?