I haven't seen this anime yet and I don't understand where it's going, but let's hope it doesn't have the ending of AnoHana or Your lie in April 😲
The OP and the ED are a fundamental part of the anime, as little as it may seem, they give another level to the story.
If that ending occurs, oh Lordy Lordy. It shouldn’t go that way at all but random genre shifts are all the rage these days after all. 🤣