Review Detail of AlphaZwei in The Holy Man of the Church Creak

This is one of the best DxD fanfic i have read. instead of normal "isekai" which happen to fulfill NEET wetdream, this story show what happen when another franchise protagonist get transported to another world. Although protagonist have many flaw at the start of story, this story show a growth of personality of protagonist and capable of make it not THAT annoying. in brief: This is good story. Why is this so low?