A stubborn, tsundere little robot who follows the rules becomes glitchy yet somehow more normal after meeting the Demon King.
Through a life full of twists and turns, the little robot gradually transforms into a complete and perfect immortal.
The poor Demon King has to chase after him, crying, "Immortal big brother, look at me!"
And still has to cook and keep the house running every day.
The Demon King breaks down. "Give me back my little robot!"
The immortal big brother exclaims, "What? You don't love me anymore?"
The Demon King falls to his knees before the throne. "How could I dare, my darling?"
The immortal big brother cries out, "Get me an oil-blotting sheet, right now! Immediately!"
Theme: Your identity has never been a barrier to love.
