"Tell me why," Kayson asked with a frown.
"I can't reconstruct what I thought as a student from where I am now, but I do remember. Snape didn't have very good hygiene back then... though he still doesn't seem to. He didn't have many friends, and his personality wasn't great either. He barely spoke all day, and... uh..." Sirius grew awkward at that point.
"What is it?" Kayson asked.
"Harry's mother, Lily, was Snape's only real friend at the time. And James happened to... James was rather precocious. He never said it back then, but I always felt that James had already liked Lily in their first year. Naturally, James saw Snape as an enemy."
"And then you carried out school bullying? Uh... I really understand Snape now. The fact that he managed to stay rational is more than I could have done," Kayson said helplessly.
"You could put it that way, but I think calling it mutual fighting would be more accurate. That guy didn't have many good points, but he could definitely fight. Sometimes the three of us weren't even a match for him. But after that incident, we gradually gained the upper hand completely."
"That incident?"
Sirius nodded. "James successfully won Lily over. Back then, we learned a few spells, one of which was called the Upside-Down Bell Charm. After class, we found Snape to test it on. In short, we humiliated him, and then Lily arrived. She wanted James to put Snape down."
"But Snape might have been too angry at the time. He wasn't thinking rationally, and in his panic, he got into an argument with Lily."
"Snape called Lily a Mudblood... and that grudge continued all the way to the present."
"A whole series of self-righteousness and misunderstandings, ultimately turning into the impulsiveness of