Hagiwara-Kun's Lover Is a Curser

My name is Chinen Hiiragi, and I have two little ones, one named Hagihara Kenji and the other named Matsuda Jinpei (reluctantly). After graduating from high school, I got together with Hagiwara, and then... My twenty-two-year-old boyfriend died shortly after I turned around. In order to avenge my ex-boyfriend who died young, I worked hard on the case. When he was on the verge of sudden death, a tall man with white hair took off his blindfold and said to me: "Ah - this is really an incredible curse." By the way, this man is my lifelong enemy (gnashing teeth). Since then, I've seen things about my ex that no one else could. Reading guide: 1. The beginning of time is seven years later. Everyone except Hagiwara survives 2. The third person of the text. 3. It is set that Chinen Hiiragi is the cousin of that man. He has no magic or spell power, and is a perverted god and curse. 4. Xinlan friendship. Intention: None