Rintarou Hinata, Ema's adoptive Father, is saddened that he can't check up on his sweet Daughter and 13 Son's as often as he would like and calls his old friend Kana Sato who is a Stoic 24-year-old Teacher and asks if she could move to Sunrise Residence and look over Ema. Kana accepts since she is isolated in her home and moves into the rowdy house, excited to live with Ema, who is like a Niece to her and thus becomes apart of the household and a teacher at Hinode Highschool. - It's been a year since Ema moved in, and she with her 13 Brother's are surprised to have a newcomer in the house, especially one so hard to read. - Highest Ranking: #3 in Asahina There is a sequel called "The Final Lesson"! I hope you like it!

This is a Sequel to my first book "Let This Be A Lesson" so if you haven't read that first please check it out! - It has been a few months since the Airport Incident. Kana has been growing as a person with the Asahina family at her side. But, what happens when romance and jealousy enters the picture? Let's see. And let this be your final lesson.

Sister complex means excessive love for one's sister. Often times, it goes past a typical brother-sister, sister-sister relationship. Perhaps a best friend or to the point of being each other's other halves. Yua Hinata has a Sister Complex. She is considered to be very rude, but also very smart. Hence why she went to study abroad. Her Father Rintarou has remarried and Ema has moved in with 13 men that are now her and Yua's stepbrothers. Yua wanted to get over there as fast as she could, but it took a few months. Now, she's back in Japan. Ema has told her everything. And you can bet Yua and her sister complex is not going to let that slide.