This is Taylor (humanoid) and Glow (cat). Glow is a deep forest spirit, meaning they manage the parts of the forest unknown to humans. Taylor accidentally picked up a cursed sword, which immediately fused to him. Oh, no! There goes all of his lifeforce. Now Taylor's pretty much dead. Glow, being the swindling spirit they are, made a bargain with Taylor. Taylor will become Glow's assistant, and Glow will continually supply lifeforce mushrooms to keep the sword's malicious energy at bay. Taylor and Glow work together with Coppice sometimes.
Thanks @sunnflow3rs for the prompt!
