Note from the Author:
This is the official English translation of my original Japanese web novel series. If you’re tired of mindless action and crave a "Rational Isekai" where problems are solved through logic, engineering, and data-driven strategy, this story is for you.

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"This world is a legacy system on an unpatched OS. I'm here to install stability updates."

Summoned with his house, engineer Kazuya rejected swords for Fiber-Optic Internet. Using Earth’s wisdom via Wi-Fi, he solves kingdom-wide crises from his sofa. From failing infrastructure to ancient curses, every disaster is a "logical bug" to be patched.

While he works remotely, his cat Tama—secretly a savior—"deletes" monsters to protect the Wi-Fi signal. To the people, he’s a "Transcendent Sage"; in reality, he’s just a lazy optimizer.

An intellectual Isekai comedy where miracles are performed with a perfectly executed patch.