By the end of the week, Kai had a working theory.
The system collected fear the way a drain collected water, passively, constantly, from whatever happened to flow past it.
He didn't have to do anything specific. He didn't have to try. If someone was slightly afraid of him, the points came.
The size of the number depended on how afraid they were and, he was beginning to suspect, something about the person themselves, though he didn't have enough data yet to be sure about that second part.
What he did have was two hundred and sixty-two points, down from three hundred and twelve, and a knife he was getting comfortable carrying.
The fifty he'd spent on the failed sixth draw had been refunded. The rest had gone on four more common pulls across three days, one at a time, spread out to see if the error repeated itself. It hadn't, which either meant the system had stabilised slightly or meant it was saving the next failure for a more inconvenient moment.
The pulls had given him a waterproof lighter, a folding multi-tool, a compass that worked fine but that he had no particular use for, and a small first aid manual printed in three languages, none of which were Japanese.
English, Spanish, and what he was fairly sure was Portuguese.
He'd stared at that one for a long moment.
"Thanks," he'd said, to the interface, to the dead person whose system he was apparently squatting in. "Very helpful."
The interface had not responded, which was on brand.
* * *
The theory about deliberate accumulation had started as a practical question and turned into something he spent more time on than he wanted to admit.
He'd been walking home from the recycling depot on Wednesday, two thousand yen heavier and smelling like old cardboard, when a drunk salaryman had stepped out of a bar and nearly walked into him.
Standard stuff. Kai had stopped, the man had looked up, and something in the way Kai was looking back at him, or maybe just the hour, or maybe just the dark, had made the man take a fast step sideways and find somewhere else to be.
The interface had flickered at the edge of his vision.
FEAR POINTS +4
Four points. From a drunk businessman who'd been startled by a teenager in a narrow street.
Kai had stood there and thought about that for a moment. Then he'd thought about it for the rest of the walk home. Then he'd lain on his futon and stared at the water stain on the ceiling and thought about it some more, which was becoming a habit he wasn't sure he liked.
The thing was, he hadn't done anything. He'd just looked at the man. He did that naturally, looked at people directly and held it a beat too long, not because he was trying to unsettle anyone but because reading people carefully was the closest thing he had to a survival skill. He'd been doing it for years. Apparently it worked.
It worked well enough to monetise.
He sat with the moral dimensions of that for approximately four seconds before deciding he didn't have enough points to be precious about it.
* * *
He started paying attention to what moved the number.
Not aggressively. He wasn't going to go around threatening people in alleys on purpose, that was the kind of thinking that ended badly and he had enough problems. But he started noticing the moments where the interface flickered, cataloguing them the way he catalogued everything, quietly, without making a production of it.
The recycling depot foreman, a broad man with a short temper who'd docked Kai's pay once for being three minutes late, had gotten in his face about a mislabelled load on Thursday morning.
Kai had let him finish, then looked at him without saying anything for just long enough that the man had run out of steam and found a reason to be on the other side of the yard.
FEAR POINTS +11
Eleven. Which was more than the drunk salaryman and less than the men in the alley, and told him something useful about the relationship between how scared someone was and how long they stayed scared.
The foreman hadn't been terrified. He'd just hit a wall he hadn't expected and backed off. That was worth eleven points apparently.
Kai filed that away and went back to sorting cardboard.
The mahjong parlour on Friday had been more interesting. The man who ran it, Tanaka-san, a compact and humourless person in his sixties who communicated primarily through silences of varying length, had introduced him to one of the regulars, a heavyset man in a good suit who came in every week and lost money with the serene expression of someone who could afford to.
The regular had looked Kai over with the particular attention of someone used to assessing things quickly, and Kai had looked back, and the regular had smiled but his eyes hadn't, and somewhere in that exchange something had shifted.
FEAR POINTS +23
Twenty-three from a man in a good suit who hadn't shown a single visible sign of fear.
That was the interesting one. Because the foreman had visibly retreated. The salaryman had physically moved away. But the regular had just smiled and looked elsewhere and sipped his tea, and the number had still gone up by twenty-three.
Which meant the system was reading something he couldn't see. Something underneath the surface of the man's composure that the man himself was probably working fairly hard to keep there.
Kai thought about that on the walk home. He thought about the fact that the regular had been wearing a very good suit in a mahjong parlour that charged entry by the hour, and that Tanaka-san had introduced them with a particular kind of careful neutrality, and that the man's eyes had done the same assessing sweep that the two men in the car outside the noodle shop had done earlier in the week.
He thought about all of that and decided that the mahjong parlour job was probably worth keeping.
For now.
* * *
The men in the car were still there.
Different car, same men, same street. They'd moved their position twice, once closer to the noodle shop and once further east toward the pachinko place on the corner. Still watching. Still waiting.
Kai had started routing his walks differently, not to avoid them, just to get different angles. From the east they were two men on a job. From the north, past the convenience store, you could see that the tattooed one had his window cracked despite the cold, which meant he smoked in the car, which meant they'd been sitting there long enough that he'd stopped caring about the smell.
They were waiting on something that was taking longer than expected.
Kai noted that and kept moving and told himself it wasn't his problem.
He was fairly good at telling himself things weren't his problem. He'd had a lot of practice.
* * *
On Sunday he had no work and nowhere to be, which was either restful or deeply boring depending on how he looked at it. He made coffee, wrapped his ribs again, the cracked ones were knitting slowly but they still caught when he moved wrong, and sat with the interface open and actually looked at it properly for the first time since the gacha pulls.
The stability had crept up to seventy-one percent. The locked menus were still locked, their placeholder text still cycling through its broken loop of characters. The abilities tab opened cleanly enough, and inside it was a single entry.
THREAT ASSESSMENT (DEGRADED)
Passive. Active at 34% capacity.
Instinctive reading of intent and threat level in observed subjects. Accuracy: variable.
NOTE: As system stability increases, ability capacity will increase proportionally.
He read the last line twice.
So the abilities grew with the system. Which meant the degraded tag wasn't permanent, it was a status, something that changed.
Which meant the thing running in the back of his head right now was a worse version of what it was meant to be, and the worse version had already been quietly logging threat levels on everyone he'd looked at for a week without being asked.
He closed the abilities tab and opened the gacha.
Three hundred and forty-eight points. He'd accumulated eighty-six over the course of the week without doing anything he wouldn't have done anyway.
He sat with that number and felt something that wasn't quite satisfaction and wasn't quite discomfort and was probably both at the same time.
He spent fifty.
The wheel spun cleanly this time, no stuttering, no skipped frames. It landed and the result appeared all at once.
DRAW: TACTICAL FLASHLIGHT. Impact-resistant. 800 lumens. Pressure switch.
It appeared on the futon beside him. Heavy, solid, about the length of his forearm. He clicked it on and the room went briefly white and he clicked it off again and sat in the sudden grey of a Sunday with no sunlight coming through the window yet.
Three hundred and minus fifty. Two hundred and ninety-eight points.
He set the flashlight next to the knife and the multi-tool and the compass he still had no use for and looked at the small collection of things the system had given him.
Nothing that would make him powerful. Nothing that would make him safe. Just a kit, the kind of thing a person assembled when they expected to keep finding themselves in situations they shouldn't be in.
He'd been doing that his whole life without any help.
At least now he had a lighter that worked in the rain.