Hello, Konoi, and many thanks for the feedback. I am glad to hear you are enjoying the game so far.
Hmm, the secret route is the unlockable sort you mentioned. This is becuase I didn't want people stumbling upon it by accident.
Depending on your tastes, it may not even be your cup of tea and so not worth playing the routes you're not keen on. If you want spoilers, you can email me at email@example.com and I'll let you know more. ^_^
Thanks for playing