There's nothing wrong with the character of Mine-kun himself. In fact, he was the highlight of this manga for me. The main issue I have stems from the fact that Mine is not the main character. If we had more insight into his thoughts, I imagine the depiction of his identity would feel more natural. Instead, the main character is the girl who confesses to him. At times, it felt a bit like she was romanticizing the fact that Mine was asexual. The story also treats his asexuality as a sort of tragedy, which I'm not the biggest fan of. However, I understand that the story was more focused on presenting a certain scenario than trying to suggest that all asexual people are the same.
I wanted to like this manga more, but it simply doesn't delve as deep into asexuality as others I've read. If you want a short bittersweet story, read this manga. But, if you're looking to understand asexuality better or are looking for good asexual representation, you won't find that here. Overall though, I think this manga is mostly harmless and I was pleasantly surprised to find that it was made by an asexual author. The afterword was by far my favorite part of this manga.
