User blog comment:B214/High School DxD Hero Discussion/@comment-24866895-20180424205854/@comment-28884330-20180425055245

TNK tried to go anime-original in possibly an attempt to bring in fans that possibly would not like how the DxD novel unfolds, therefore increasing popularity and economic gain. However, as the gamble was lost because the loss was much larger than the gain due to several issues, the biggest of which being that the anime-original plot turned away much more DxD fans than the people it attracted.