Jin'er's Certain Scientific Whitewashing System

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After being Toji Fushiguro, the Heavenly Restriction's Tyrant from a certain jujutsu series; the lifelong rival once encountered by a certain strongest; a scumbag in the eyes of outsiders; a good-for-nothing in the eyes of the old guard; and the archetypal shonen manga villain, he was blasted to death by the Six Eyes...

He closed his eyes, opened them, and smoothly reincarnated.

So Toji Fushiguro changed his surname yet again, becoming Matsuda Jinji. But Jinji, who was completely sick of living, refused to accept it and tried to kill himself, without success.

After that, a bizarre creature calling itself a "Villain Redemption System" inexplicably awakened in his mind. It demanded that he redeem himself and become a good person. Jinji resisted again and again, but ultimately lost in spectacular fashion. After his new mother died, he took on the responsibility of cooking, keeping the family fed, and caring for the children... as well as raising his useless dad.

Jinji began to willingly (and under duress) become a good person.

[System Mission: Become an honest, upright cop]

Jinji: "...Don't push it."

Some younger brother: "My big brother... That stinky big brother! He does nothing all day but yell at me or give me the cold shoulder... Hey, Hagi! Don't eat the meat I put in the fridge! I saved that for my brother!"

Some kid next door: "Ah... So he really is a brother-con. Little Jinha doesn't mean what he says."

Some kid's big sister: "Come to think of it... Jinji's a tsundere too, isn't he? No wonder they're brothers."

Some kid next door: "He really is! Come to think of it, when will Brother Jinji finally remember my name...? He can remember my big sister's name just fine. That's sexism, pure and simple!"

Jinji: "Tch, quit talking nonsense! I told you I'm bad at remembering men's names!"

Written on September 16, 2025.

Reader's Guide:

1. OOC warning.

2. The timeline has been changed. Any plot holes are probably in service of the story. My writing is very bad, and I know it. I don't need writing advice.

3. I want to try writing a long novel with this one, but it will probably lean toward everyday-life stories.

4. Feel free to ship characters. There is a small Megumi's mom x Jinji romantic subplot, but the main focus is friendship and family. I feel that if the protagonist has a romantic relationship, then it can't be considered no-CP, so the tag is multiple pairings.

Theme: Everyone deserves to be loved