Review Detail of Dragonia_101 in Naruto system in the DxD world

Could have been a great story. The concept was also good but mc is way too stupid and supposedly training for 11 years with chakra he can not even reach the level of low level devil and is an idiot .even when he saw fallen angels wings he thinks it's a human. Not only that for 1 year supposedly he was using Byakugan at school yet did not detect the presence of devil's. If u had put a little bit more smart mc it would have been good story