After Retiring, the Hero Spends Every Day Assembling His Wife

(Slice of life, slow burn)

To save the world, the hero Ragnaros fought a final battle against the most vicious and evil Demon King in history, alongside his beloved sword, the demonic sword Apophis. He won, but only at the cost of shattering the sword, and his own grievous injuries left him in a deep slumber.

When he awoke, ten years had passed. He had not forgotten the promise he made, and set off on a journey to find the fragments of the demonic sword scattered across the world and bring it back to life...

"Hello, have you seen any strange fragments? They mean a lot to me." A petite girl named Rose Magna, carrying a long wooden case on her back, asked him.