It is an original story in the form of a light novel. I managed to find and read just 2 chapters because I'm not able to find sufficient information or resource of this novel. But writing is great and words are easy to understand and imagine the scene. I loved it. If there's new update on the website where I found this, I'll definitely continue reading it. Since it follows the original story of Nakamura Shiharu, the twins and Matsunaga Seiji, it is very easy for the readers to understand the story in the text form. The novel starts just after the scene of Matsunaga's confessionto Shiharu. It is written in the 1st person with Matsunaga Seiji's point of view. Go ahead and read it. You will not regret it. That's for sure! *^U^*