S01E0150:331. Episode 1Empowered by the God of Light, Taesan and the angels fight with Marok to protect the world as Ogwi and Samin plot to plunge the world into darkness.
Twelve Season 1 – Watch online
8 episodes · since August 23, 2025
12 animals who received a call from heaven and came down to the human world to save it. They are each given their own powers to protect humans and are reborn as 12 angels. Led by the tiger angel Tae San, the leader of the angels, the 12 angels fight a bloody battle against Asura, the king of demons…
S01E0150:331. Episode 1Empowered by the God of Light, Taesan and the angels fight with Marok to protect the world as Ogwi and Samin plot to plunge the world into darkness.
S01E0250:552. Episode 2While Taesan is haunted by his past guilt, Samin seeks Ogwi's help to steal Mirr's power. An odd light signals the evil's return.
S01E0349:173. Episode 3After evil spirits strike, Tae-san worries for the injured angels. O-gwi, with the soul stone, vows revenge as Ma-rok secretly hunts Sa-min.
S01E0449:344. Episode 4Marok warns Taesan of Ogwi and Samin’s return. As they sense the evil at their gathering, Geumsoon, the only human Taesan cares for, becomes a target.
S01E0551:205. Episode 5Taesan protects the angels and Geumsoon, while Samin kidnaps Mirr. Ogwi takes the power of Mirr and the soul stone. Marok unleashes his wand's power.
S01E0649:226. Episode 6Ogwi battles Samin for the soul stone and escapes with Mirr. Taesan opens the Hellmouth, restoring the angels' powers but unleashing evil worldwide
S01E0749:167. Episode 7Ogwi prayed to God, but a different entity answers him. To stop Samin from stealing Mirr's dragon soul, Taesan storms an underground temple in fury.
S01E0850:218. Episode 8As angels clash with Samin's fallen angels, Taesan falls defending Mirr, only to rise again to seal away the evil and save the angels.Where to stream Twelve Season 1
Subscription
Availability provided by JustWatch via TMDB, details on TMDB. Offers in the United States, subject to change.
About season 1
Season 1 of Twelve has 8 episodes, aired from August 23, 2025 to September 14, 2025 on KBS2. Episodes run 50 minutes on average. The highest rated episode is “Episode 2” (S01E02, 8.0/10).
Frequently asked questions about Twelve Season 1
How many episodes are in Twelve Season 1?
Twelve Season 1 has 8 episodes.
When did Twelve Season 1 air?
The first episode aired on August 23, 2025 and the last one on September 14, 2025.
Where to watch Twelve Season 1 online?
In the United States, Twelve is available with a subscription on Hulu (source: JustWatch via TMDB, offers subject to change). Availability of each season depends on the platform.