Hey! Buy an Insurance Policy, and the Cat Will Protect You!

Ian never imagined that, as an eighteen-jin kitten, he would get kidnapped into some hugely popular manga. And now the System says he has to earn a hundred million fish-shaped treats from humans before it will set him free? Darn it, when did cats ever have to earn fish treats? Isn't it only right for humans to pay tribute to him?! The System was very accommodating. Not only was it willing to sever their bond right away, it even offered to personally take him home. [Then I can only return you to the human who was going to take you to get your balls snipped.] Ian: ... A thousand cat curses flew through his mind. The cat gave in. But he was only allowed to earn fish treats by selling insurance to humans? Ian was confused. Ian understood. Once a contract was signed, the cat just had to protect the human and make sure he stayed alive. Simple, just like being the boss cat used to be~ But Ian had transmigrated into the high-risk Jujutsu Kaisen world! Thankfully, the golden finger granted by the System let Ian create several secret identities. So Ian worked himself to the bone, dashing between all kinds of worlds and controlling secret identities that didn't look all that reliable to protect his wimpy human underlings. It was exhausting. He even gained two jin from all the hard work. After all, it was Ian's secret identities doing the work~ [Secret Identity No. 1] I can cry louder than you! The blond screamer let out a piercing shriek, sounding even more terrifying than a cursed spirit. "Aaaaah! What is that?! This has to be a joke, a joke! How can anything be this scary? Sob, aaaaah!" Then he fainted from fright and took out the cursed spirit in a single blow. [Secret Identity No. 2] I've wanted to taste a cursed spirit for ages. Now entering the stage: an extremely humanoid Los!!! "Oh, although these monsters called 'cursed spirits' aren't demons, they're quite similar to demons in some ways. I wonder how they taste..." "T-Taste?" "Of course! At a time like this, we have to give them a try! Deep-fried tempura, boiled, or a grand barbecue!? Mmm, I can hardly wait. How about sashimi... Ahem, never mind. Better to eat it cooked." [Secret Identity No. 3] Because... that's why I want to fight. A fragile, humanlike being dreams of joining the fight and helping everyone. With every shattering, it grows stronger than before, but forgetfulness follows in its wake. What was I fighting for in the first place? The dazzling gemstone person breaks apart and reforms into something almost monstrous, yet stubbornly stands before you, all for a promise they can't even remember. [Secret Identity No. N]... While using his secret identities to save his weak servants, Ian never forgot to put himself on a pedestal and happily enjoy everyone's offerings. Meow, it's only natural for cats to rule over humans, meow~ Hey, human, hand over those fish treats! Or I'll have my underlings teach you a lesson, meow! Reader's Guide: 1. Ian is a very rare male calico cat! (I specifically asked Laoshi to draw his balls, hehe, and even told them to make them small. But, well, male calico cats, you know what that means. He's basically a neutered cat.) 2. The cat's real form never turns human. 3. His secret identities are never exposed. Theme: Prepare for the future and stay alert even in times of peace.