Hi, rasberi here. I wanted to express my gratitude for the readers who are supporting Seventh Agent until today. Thank you for almost 700k reads (whoop, whoop). I decided to do some reminiscing and read Seventh Agent again (it's been at least 3 years since I published it), and along the run I read some of your comments and some people are quite confused. And hopefully, this could clarify your questions:
1. Seventh Agent is written before Truce is published and while Seventh Sense is still on-going. So, there may have been things that I don't have knowledge of during that time. As far as I can remember, I think I published it late 2014.
2. It's a fanfiction. Meaning, I asked permission from the original author to use her characters and plot and to continue the story. No way am I the author of Tantei High or other books related. Lux is an exception though, she's an original character and is not spoken of in purpleyhan's Tantei High.
3. To not get confused about the terms (Atama family, green eyes, sixth senses etc.) read first purpleyhan's Tantei High.
4. The cases were not my ideas. I used a concept from some episodes of Detective Conan and tweaked it a bit. I gave them credits on the chapter the case is written on.
Note: I apologize if you discover any plot hole. Apparently, I am too lazy to edit or revise. I wrote this in 2014, I was 12 years old, and I have no proper plot. I just went with the flow back then.
Thank you!