Well that's some hard novel to read...I just read 10 chapters now.....for now all I can see that you need to have some knowledge about Indian hindu and Buddhism believes....like naraka is hell in indian mythologies.asura is actually refered for collective race of very strong demons it's actually not a name and sur was post fix in name of most of demons like bkasur or mahishasur..or kishitigarba was bodhisatwa who walks the road of hell to gain enlightenment...in hindu mythologies most of the bodhisatwa were referred as sages and rishi or muni was used for them...
