Considerations This is a spoilerfree review 70 in my scoring system means average. I got to read this because of a funny review posted here on AL and got interested in the topic of sleep advice. The Story The story is centered around Kiichi. A high schooler who lives with his cousin Hana who also happens to be a teacher at his school. Hana is someone who loves researching sleep and acquiring sleep aid tools. 320https://files.catbox.moe/7lbe4d.jpg Theres not much to put as a synopsis as the manga just revolves around their daily lives. If I am to be totally honest with you theres no big story in this manga. The chapters are episodic with a little development in the relationship between both cousins. But I am writing this review not because of the story art or characters. Im doing this review because of the sleep tips it contains. Pretty much every chapter has one sleep tip. They go through sleep cycles and tips whether its a pillow mattress or routines. As someone that likes the science of sleep I couldnt spot any mistake. The author also gives a list of books that he references when writing this work. The Art Style The art style on Koi to Utatane is good. They do a good job of capturing background scenes and expressions. The characters are well drawn but dont differ too much. Many of the characters have very similar hairstyles with the only difference being their height personal style and hair color. 420https://files.catbox.moe/zit6da.jpg Another point to add in regards to art is that whenever theyre explaining tips about sleep using acupoints and such theyre very well detailed. I find that a good aspect of the manga. The Characters There are a small number of characters in this manga. Hana and Kiichi hold the spotlight with some of her students and sleep aid supplier appearing in the background. Theyre not very well developed they dont change as the series progresses and there are only lapses of background information about both Hana and Kiichi. Conclusion If youre like me you skip everything and read only the conclusion because you dont want to get spoiled with other themes. So I will try to be brief on this point: Maybe read it. If youre someone that has trouble sleeping you will get a lot of information especially if youve never done some research on it from this manga. If nudity and incest are themes that you cant accept dont read it. If you dont have trouble sleeping and are just looking for a romantic story To be fair you can find better ones out there.