Review Detail of Paracausality in DxD: Magician Of Darkness

The mc is a good character with is written well, up until he evolves later in the story and becomes a dragon. After that the story starts to fall off, he starts making seemingly pointless decisions and the other characters writing starts to fall off as well. Story is an 8/10 up to that point, after that it becomes a generic copy and paste MC personality on a harem collecting quest, story is a solid 5/10 after that ngl