On this episode, Lovro visits the school to see Irina. Later, Karma, Ritsu and Nagisa goes to Hawaii along with Koro-sensei.
It was quite cool to learn more about Irina and more of her connections. Also for the second half, I wasn't expecting Ritsu to somehow tag along with the other two students. Besides that, the episode is pretty neat to have two adventures in one since both plots turned out short especially. Now what's going to be the next plot? Overall, an awesome episode about two adventures.
Conclusion: An awesome episode about two adventures.