Is Gojo Evil Novels & Stories

Alverto Cassiero a scientist was murdered by the government when the after effect of the substance A13 which he created led to the death of the soldiers that fought against the aliens in the early 80's. Maria Cassiero who was Alverto's mother decided to seek revenge for her son's death and this led her to meet a demon called Diemon.Diemon helped Maria to avenge her son's death after making a pledge to him.Some years after,Diemon was tricked by a Chinese monk who casted a spell on him and turned him into a statue so as to save his student from being offered to him as a sacrifice.