Can I Still Be a Savior with a Green Tea Persona?

The cursed tool user Kazami Shirasagi was powerful and sharp-tongued.

Karma came quickly, and he was forced by the System to start acting like a manipulative sweetheart.

Since the System judged him only by his lines, Kazami Shirasagi researched ways to eliminate the System while doing his best to work the missions into his everyday life.

“Wow, you're amazing. You can exorcise a Grade 1 cursed spirit. Unlike me, I'm so useless, all I can do is make Special Grade cursed tools.”

“If he misunderstood something, don't argue with each other. I'll go explain it for you, though I'll be using my fists.”

“There's no one keeping you company right now? If something's wrong, tell me about it. Not that I'll listen.”

The System's fantasy: Targets won over +n.

The cruel reality: People tormented +n.

Kazama Shirasagi had long known he wasn't the only unlucky one.

The Six Eyes sorcerer was bound to a Supporting Character Comeback System, the leader of the Star Religious Group was bound to a Tragic Beauty Superstar-Maker System, and even the King of Curses, Ryomen Sukuna, was bound to a Villain Comeback System.

He resolved to create the strongest cursed tool, inspired by modern weapons, and sink the whole country with one shot.

He wanted to see which System and Host could handle a nuclear strike.

*

For the past ten years, Kazama Shirasagi had tried his best to live a forthright, sharp-edged life.

You could say getting a Manipulative Sweetheart System was completely within his expectations.

// Subtle flirting with a heartthrob who charms everyone, many people have feelings for him.

// Plenty of content beyond the original, many original settings, a feel-good power fantasy.

// No matter what happens along the way, everyone is saved in the end, with sushi for all.

[Content Warnings]

1. The protagonist is devoted to his family above all else. Even if the sky falls, his family comes first.

2. The protagonist has a tragic background, but he won't be abused after his first appearance.

3. He has different romantic interests at different stages, including a teacher-student relationship.

4. There are non-canon pairings (ongoing): Hakari and Hoshi.

5. Kind additions in the comments are welcome.

[Live Progress Updates]

Chapters 1–21: Tokyo Jujutsu High

Chapters 21–28: Demon Slayer Corps (kills Lower Moon Six in chapter 27, fights Upper Moon Two)

Chapters 29–50: Tokyo Jujutsu High (the Star Plasma Vessel Incident in chapter 42)

Chapters 51–60: Demon Slayer Corps (kills Upper Moon Five in chapter 55, fights Muzan)

Chapters 61–86: Tokyo Jujutsu High (Geto defects in chapter 79)

Chapter 87–latest: Demon Slayer Corps

Theme: Never bow to fate