Transmigrated As Satoru's Father (A Jujutsu Kaisen Fanfiction)

Chapter 21

As Seijuro and Kaori settled into their seats, the tension between them was palpable. Kaori tapped her fingers rhythmically on the wooden table, sneaking glances at Seijuro, who seemed unnervingly calm considering the chaos they had just escaped.

"Alright," Kaori snapped, breaking the silence. "Spill it. What the hell was that blob thing? And who the hell was that creepy guy with stitches? What's going on?"

Seijuro leaned back in his chair, his crimson eyes studying her carefully. "Okay," he began, his voice steady but serious. "But I need you to stay calm. What I'm about to tell you will sound... crazy."

Kaori raised an eyebrow, crossing her arms. "Try me. After what I've seen today, I don't think anything can surprise me anymore."

"Fair enough." Seijuro leaned forward, resting his elbows on the table. "Those things you saw? They're called cursed spirits. They're physical manifestations of negative human emotions—fear, anger, hatred. When enough energy builds up in one place, it takes shape and becomes dangerous."

Kaori frowned, her mind flashing to the toxic atmosphere at her workplace and the simmering frustration she'd felt earlier that day. "So... what? You're telling me that blob was made out of bad vibes?"

"It's not as simple as 'bad vibes,'" Seijuro replied, his tone firm but patient. "Cursed energy is real, and it's something every human produces—whether they know it or not. It's the byproduct of negative emotions. Most people can't see it or the spirits it creates, but in places full of negativity—like your workplace—it can attract and strengthen cursed spirits over time."

Kaori's skepticism faltered as she connected the dots. "You're saying... my awful job contributed to that thing?"

"Not directly," Seijuro clarified, shaking his head. "It takes a huge amount of cursed energy to form a spirit that powerful. But places with concentrated negativity act like magnets. They attract and amplify spirits that are already lingering nearby."

Kaori crossed her arms, trying to suppress a shiver. "And that stitched guy? He didn't look like some blob of bad juju."

Seijuro's expression darkened. "He's not just any cursed spirit. His name is Mahito. He's a special-grade cursed spirit with intelligence—and a particularly horrifying ability. He can manipulate the shape of people's souls, twisting their bodies into whatever grotesque form he wants."

Kaori paled. "Manipulate souls? That's... sick."

"It is," Seijuro admitted grimly. "That's why people like me exist. We're called jujutsu sorcerers. It's our job to exorcise cursed spirits and protect people from them."

"Exorcise?" Kaori echoed, her eyebrows knitting together. "What are you, some kind of priest?"

Seijuro smirked faintly. "Not quite. We don't chant prayers or wave around holy water. We fight using cursed energy. Jujutsu sorcerers are trained to harness their negative emotions and turn them into cursed techniques—abilities designed to combat these spirits."

Kaori leaned forward, her interest piqued despite herself. "Cursed techniques? Like superpowers?"

"Sort of," Seijuro replied. "But it's not as fun as it sounds. Cursed energy is volatile and takes years of training to control properly. One mistake, and you're as good as dead."

Kaori frowned, processing his explanation. "And the spirits? Are they all as bad as that blob?"

"No," Seijuro said. "Cursed spirits vary in strength. They're ranked from Grade 4, the weakest, to Grade 1, which are exceptionally dangerous. Above that are the special grades, like Mahito. They're on a completely different level."