On the Compatibility of Naoya Zenin and a Personal System

Zenin Naoya, the heir of the Zenin family and, barring any surprises, its future head, had known from childhood that he was different from everyone else. He possessed a System no ordinary person could have. [If you don't train properly, you'll get beaten to death by a woman.] "What gives you the right to boss me around?" The young master stuck his chin out at the air. If he weren't too young for the rebellious phase of dyeing his hair, he would have been the very picture of a strutting, arrogant rooster. [Submit to the strong, Zenin. I can tell at a glance where all your current moves fall short and how to improve them. And at least for now, I'm stronger than you.] "When I'm stronger than you, I'll make you pay for what you've done today." [I'll be waiting for the day you surpass me.] The Zenin Naoya from the main world, now reduced to a wisp of a lingering soul, sighed mournfully. After all, you don't want to turn into a giant worm, do you? Note: 1. A story written specifically for Zenin Naoya, the handsome scumbag who turned into a giant worm. 2. I'm terrible at writing blurbs and prose. The characters may be seriously out of character, and there are plenty of author-invented details. 3. This is still a brainless wish-fulfillment story. As long as it has a happy ending, that's all that matters! Written for love, updated whenever inspiration strikes. 4. Pairing undecided, but I absolutely will not take votes on who to ship. Thank you! 5. If it's not your thing, please don't read. 6. I'll add more if I think of anything~ Theme: Zenin Naoya, don't become a giant worm!