My Little Sister's Wild Ride: But I'm Not Old!

A millennial office worker's mundane life explodes when a mysterious system crashes into his world. Returning to his hometown, he transforms into an unstoppable force of chaos—part mentor, part madman, all entertainment. Watch as this 'not-old' protagonist embraces his inner wildness, defies expectations, and carves out a legendary path through modern society. Expect unhinged energy, explosive confrontations, and pure wish-fulfillment as he proves age is just a number when you've got a system backing your every move!