On this episode, Tooru and his friends team up against Lilith along with other students. Later, a mysterious squad interferes with the battle.
So the episode was pretty much all out action which is great. Also there's more nice bonding between the characters and a deeper build up for the main plot. Anyway, will the actual antagonist show up on the next episode or real soon? I wonder who it is. Overall, awesome action episode and build up for the main plot.
Conclusion: Awesome action episode and build up for the main plot.