Can't a king get a vacation

"I distinctly said no Wood Style near the barbecue pit, Hashirama."
Arthur Leywin just wanted a peaceful holiday. No wars, no political betrayals, no world-ending aether crises. Just a comfortable deck chair, a cold drink with a tiny paper umbrella, and absolute quiet on a secluded tropical island.
Instead, he gets dropped smack-wack into the Shinobi world right as the Fourth World War is brewing.
As the Naruto universe begins to implode under the weight of its own historical corruption, hidden massacres, and naive idealism, the Five Kage look to this strange, powerful teenager as a potential savior. But they don't realize the terrifying truth...
Arthur isn't the threat they need to worry about. Arthur is the leash.
One by one, an absurd, multi-fandom roster of cosmic monarchs, tactical geniuses, and absolute calamities begin breaking through the dimensional barrier to check on their King. From Aizen Sosuke calmly picking apart Konoha's military economy over tea, to Satoru Gojo trolling the ANBU, and Zaraki Kenpachi casually cracking the Hokage Monument just by sitting on it-the Shinobi world quickly learns that the only thing keeping these monsters from erasing the continent is Arthur's desire to relax.
When the naive "Will of Fire" fails, the leaf village leadership undergoes a brutal democratic coup, putting Tobirama Senju in charge of a hyper-militarized state. And when internal betrayals finally push Arthur's eighteen god-tier commanders to their absolute limit, they don't threaten physical extermination-they propose total geopolitical and economic isolation.
Watch an exhausted, off-the-clock Arthur Leywin act as the ultimate crisis manager for a world that can't stop setting itself on fire. Because the nice guy is done playing nice, and his vacation time just expired.