To me, they should have simply changed names, and not to try recall some of characters in the anime. I know they wrote something like "inspired by" but calling mc Light and the other guy L. I think that's the bad part. Cause people can't help but compare them to actual Light and L. Which,if you have seen the anime, it will kinda annoys you. So yeah. If you haven't seen the snime, watch the movie 1st.