I am the shadow

A shadow, that's what he is.
and it's a common fact that without Shadow, light would just as plain. It won't be as strong without Shadow.
But then they voiced it out, and shadow is there to witness.

"Coach, I have something to do. So I'll be going..." all that left from him as a book.
a book that only the Shadow himself know what it contains, up until now...

Will they regret of their did?

Disclaimer : KnB is not mine ~ and becareful for grammar mistake, cause this will likely unbeta-ed X3