Hikari Serizawa — Probability Manipulation

OC Character

Name: Hikari Serizawa

Age: 29

Gender: Male

Height: 192 centimeters

Weight: 73 kilograms

(I'm sorry I'm being specific)

Cursed Technique:

Probablity Manipulation

This CT allows the user to change the odds or probability of an event. For example: He can increase the chance of a gun failing using his CE which manipulates events or reality, etc. Even something impossible like phasing through a wall in Quantum physics it's not mathematically impossible but this guy can increase that probability to 100% but it'll give him CE Exhaustion or Burnout whatever.

CT Extensions:

CT imitation. The cap of this skill is 60% this gives him the possibility of shifting his CT into a CT he's trying to copy. For 30 minutes completely replacing his CT within the 30 minutes. RCT on the other hand is capped at 40% and going over it might kill him due to the weight of the technique his CT estimates.

Failure Conditions:

In most conditions like 45 or below any failure except for RCT isn't very bad. But 46+ things might get tricky.

Depending on the probability and what you're changing the damage may differ but it can get really really bad. A lot of times risk of brain damage but most of the time CE Exhaustion.

CT Reversal (W.I.P if you guys want to suggest some I'd like to hear it ngl but sorry if I'm kinda asking to make me a CTR didn't mean it like that)

Domain Expansion:

Casino of Endless Possibilities

In this domain: Serizawa gains multiple cards dictating a random possibility that ranges from 1%-100% and he can think of a scenario to implement those possibility cards.

Example: 80% Card - Serizawa implements that there's an 80% chance the sword will break upon contact with him (pretend he's fighting a guy who has a sword) and then the sword breaks. But there's a 20% it'd slash through him though.) He can also twists stuff like 1% and 1% of his punches will miss. Or he can set those probabilities for others.

Personality:

Serizawa was classmates with the likes of Shoko, Nanami, Gojo, Geto, etc. Basically he's teens with them. But after graduating or smth he cut ties with Jujutsu and started gambling and abusing his CT. After a while and winning a lot he inevitably became bored. Serizawa by heart is naturally a risky person but he's kind when Kento Nanami asked for money to buy a few books he gave him more than enough. (THIS IS MY TIMELINE OK PLS LET THIS SLIDE) Why did Nanami ask Serizawa? Because Serizawa and Nanami are fairly close and Serizawa is an approachable guy who's kinda lazy. He returned to Jujutsu stuff after he encountered a curse about to enter a room at the complex he lives to do who knows what and he immediately exorcised it via "This curse will get exorcised by me with one punch at 50% probability". The feeling felt good and seems like returning is a way to let his life be risky and help people.

Skills:

PM unexpectedly requires monstrous amounts of CE and CE effeciency to maintain probability. So basically he has monstrous amount of CE reserves, Great CE effeciency and a really high CE output

Multiple martial arts - learned them since he got nothing to do plus he has a lot of money.

He's very physically capable and fast. Not as fast as Naobito and not as fast as Gojo. But he's still very fast.

Notes:

I got this because I saw a vid about Phasing through a wall probability

The name Hikari isn't inspired by Hakari. It's inspired by Ultraman Hikari and his host Serizawa.

I'll still be fixing his character though. This is the first impression.

Posted May 12, 2026, 8:12 AM UTC

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