I apologize in advance for not making a good review. I'm not sure if I'm a good reviewer, but enjoy just making reviews. First of all, the story is about the main girl, Miyazaki (or Seine) trying to avenge his guardian from mermaids, which isn't the mermaids we usually imagine. But she also has a job of taking out "mushi"(Bugs that take over someone's thoughts by the mermaids desires), but in order to do so, she must die at least once, meaning she's immortal. But meeting a guy name Tsugawa makes it difficult for her to do her job, because he doesn'twant her to die.

The story so far is great. The development of the story is going in a good pace that everyone can catch on.

The art will remind you of Karin (I think they're the same artists), which is pretty good in my opinion.

The characters make the story better. Seine reminds me of Yuki Nagato for some reason, but that's not the point. The development of the characters are going in good pace. Especially after they are taken over. They show they're true selves afterwards.

It's easy to enjoy the series because of its random comedies but also has serious action and some drama.

Overall, I enjoy the series so far. I hope you find this review at least okay.