https://ncode.syosetu.com/n7471fo/34/

This is a very short WN I read on a whim over the course of a few hours.  It is complete for what it is, and what it is isn't what you'd think.  The protagonist is a reincarnator who was reborn in a game world, where he became a rootless traveling mage, sightseeing in the fantasy world he knew from the game.  One day, he comes across a collapsed Dragonkin girl, who turns out to be the demon lord from the game.

This story is one of romance and redemption, as a clumsy man approaching middle age does his best to be a friend to a girl who has lost everything.  To be honest, there were several times even in this short story that I cried, simply because the writer was so good at creating the character interactions between Spika and Sanson.  As Spika regains her humanity, it turns into an adorable romance that you can't help but cheer on.