That Time I Got Reincarnated as a Slime Season 4 Episode 9 is finally here, and this was the installment that fans had been paitently waiting for. After a lot of politics and Mairabell working under the shadows, she is finally standing in front of Rimuru. Now, with all the preamble that set the stage, this anime is ready to focus more on action.
This week's installment had everything, from everyone exploring the dungeon to Rimuru once again proving himself, and it ended on an exciting cliffhanger. The first half of That Time I Got Reincarnated as a SLime Season 4 Episode 9 was focused on trying to uncover the mysteries that were deeply hidden at the ruins of the ancient Sorcerous Nation of Soma.

It was during the second half that they managed to raise the stakes at a pace that even viewers could not keep up. Everything started to spiral when Mairabell decided to revive the terrifying and powerful Chaos Dragon. Rimuru and his team had constantly kept their guards up, but this was a wild card move that no one could have anticipated.
That Time I Got Reincarnated as a Slime Season 4 Episode 9 worked on world-building, but at the same time, it reminded us that even a demon lord like Rimuru cannot take the situation around him lightly. As everyone had started to continue their journey through the underground ruins, we saw that the ancient city, which was expected to be dark and gloomy, was actually surprisingly beautiful.
One moment that stands out in That Time I Got Reincarnated as a Slime Season 4 Episode 9 is when the group learns about the ancient civilization, which is connected with Millim's past. As the team continued to explore deeper levels of this dungeon, viewers were given a golden opportunity to understand some important lore. The ancient murals and carvings gradually tell the story of Soma's downfall and hint at a tragic connection between the nation and Milim herself.
Raphael steals the show once again in That Time I Got Reincarnated as a Slime Season 4 Episode 9

Ever since this season began, Raphael has continued to prove consistently proved how invaluable this character is. When the group came across the sealed door, it looked like it was impossible to open. All the members were trying their best to figure out a way, and that is when Rapheal managed to quickly assess the situation and guide Rimuru with a solution.
What looked like an impossible to solve puzzle for most of these adventures ended up being a piece of cake for Rimuru, and all the credit goes to Raphael. This moment in That Time I Got Reincarnated as a Slime Season 4 Episode 9 was hilarious because Rimuru was breezing through this issue while others were watching him with utmost fascination.
The Chaos Dragon awakens and Mariabell confronts Rimuru

The episode's biggest moment arrives when the villains successfully revive the legendary Chaos Dragon. The awakening immediately changes the atmosphere of the episode. Moreover, the Chaos Dragon's return is especially devastating for Milim because of her personal connection to it.
That Time I Got Reincarnated as a Slime Season 4 Episode 9 ends with multiple conflicts set in motion. Rimuru faces Mariabel, Yuuki, and their allies, while Milim prepares to confront the Chaos Dragon. Although many fans believe Rimuru holds the advantage thanks to his numerous hidden abilities, the episode succeeds in creating genuine tension. Even Rimuru appears cautious as he assesses the situation.
Final thoughts
This episode showed us how one of the most dangerous creatures is brought back to life. Meanwhile, Rimuru is about to face his enemy, and the stage has been set for an inevitable battle. In the end, That Time I Got Reincarnated as a Slime has hinted that the upcoming episodes might feature some of the biggest confrontations of the season.