In her previous life, after Vermouth died, her soul drifted endlessly through the void, unable to reincarnate. By chance, she became bound to a security System.
The System said that although she had lived in darkness, she still had a good heart, so it sent her to another world. There, she had to complete the System's security missions and accumulate enough protection points to reincarnate.
Vermouth wasn't particularly attached to the idea of reincarnation. But influenced by the people she had known in her previous life, she wanted to be a good person too.
And so...
Her adopted little brother was bullied by members of his family, so she gave him a hand.
A troubled student was about to go astray, so she gave him a hand.
A sunny young man was framed, so she gave him a hand.
.
.
.
Just as she was about to complete her mission, her old boss showed up in this world too. He joined forces with a brain and plotted to wreak havoc on the whole world.
Big Sis Vermouth: "Dude, why are you still haunting me? I'll show you what the security guard at Tokyo Jujutsu High can do!"
Vermouth has some fanon changes. She didn't willingly join the Black Organization in her previous life; there were extenuating circumstances. In this life, she's a genuinely good person.
Everyone in this story is a good person, except for the final big bad. They are destined for a happy ending, I think~
Theme: Keep a kind heart, no matter the circumstances