3 Book(s) Related to q sidechick

Jack Snyder died on Earth during a car accident. Time went by, and he heard a girl’s voice calling Nozomu Shinchaku. Jack slowly opened his eyes and an unknown girl was crying in front of him, but everything about her was wrong. Long blue hair, yellow eyes, cat ears instead of normal Human ears. Jack glanced at her hand and saw sharp and long fingernails caressing his face. A fluffy blue tail was trembling behind her, signalling her worries.
Jack saw a pool of blood on the ground near a rock, and he had a big bandage on his head. Strangely, his soul travelled to a young boy’s body, that judging by the pool of blood, died because of that rock.
Now, he has to learn how to live in a strange Magical World as the Human teenager Nozomu Shinchaku that strangely can’t use Magic, and Magic has no effect on him.

“Definition of sidekick:

A sidekick is someone who goes with the main lead on their adventures. If he is a superhero, the sidekick helps fight crime. Sometimes this word signifies an imbalance of power, and it implies that the sidekick is less powerful than the main lead.
Sidekick is one of the most effective forms of attack in a street fight. Hard kicks, especially to the knee, can take a larger opponent down or at least blow out his balance, leaving him vulnerable to follow-up shots.”

I intend on keeping this story free till it's finished.

The heist of the decade and yet, no one would have guessed… it was her.   The Milanese stars are missing from the famous Buccatino boutique. When American insurance investigator, Samuel Keane is called in to liaise with the polizia, he finds the whole heist odd. Not only are the Milanese stars, a set of five pink diamonds, not listed in the inventory of stolen items, worse, none of the surrounding owners or passersby witnessed a thing.  Samuel is anxious to solve the case and partners with local café owner, Vita, who has a very good vantage point to watch Buccatino. Vita herself has quite the interest in Samuel. He's a decent man, not to mention delicious, and he’s smart. But the last thing she wants is to be caught. After all, Vita has planned the heist for years. Five to be exact. The only thing she didn’t plan is falling in love with the young American.  As Samuel digs further into the history of the stars, he discovers Vita’s friends and her physically challenged sister are all connected to them. He learns of Vita’s past and the loneliness she’s resigned herself to in an effort to protect herself from loss. Samuel also learns Don Giovanni, proprietor of Buccatino, is no ordinary man. He’s a local Mafioso and will stop at nothing till he gets the stars.  The more Samuel investigates, the more dangers he and Vita face. Can he solve the case and what will happen with Vita? What will he do when we learns the heist of the decade isn’t about stealing pink diamonds… it’s about settling the score.