what happended to Moo-young in tale of the nine tailed 1938 ending

Moo-young does not simply disappear at the end of Tale of the Nine-Tailed 1938 ; his story is tied to the reveal that he is connected to the masked man/King of the Five Paths and to the larger supernatural conflict around Lee Yeon. In the finale discussion, he is treated as a major unresolved figure rather than someone with a clean, ordinary ending.

What happens to him

• Earlier recaps frame Moo-young as someone with a hidden identity and a fate that could go toward good or evil.

• By the later episodes, the series links him to the masked-man mystery and the King of the Five Paths’ influence.

• The ending does not give him a simple “he lives happily ever after” resolution; instead, it leaves him wrapped up in the supernatural setup for the broader story.

In plain language

The safest way to read the ending is that Moo-young’s arc is left deliberately open and mysterious, because the show uses him to connect the 1938 timeline to the bigger mythological conflict.

Why people find it confusing

A lot of ending explainers point out that the finale leaves loose ends, and Moo-young is one of the biggest ones.

That is why viewers often ask whether he is dead, possessed, or still around in some transformed state.

TL;DR

Moo-young’s ending is intentionally ambiguous: the show reveals he matters to the masked-man/King of the Five Paths storyline, but it does not give a neat, fully closed fate for him.