I'm looking for a novel similar to the authors pov

[abootlicker]

The novel had the main character reincarnate into the world of a shonen manga. The previous main character has a demon inside him similar to naruto who was either Orochi or Bahamut. The rival of the previous main character used magic mirrors and had a kitsune mother. The new main character had a fish thing that later transformed into a dragon and his friend had abilities related to chess. The power system was extremely similar to Nen. Thats all I remember and it hasnt helped me at all in finding the novel through 'Series Finder'. If you know the title please help me.