I wouldn't call this yaoi/bl tbh. It's more like a tragic story of 2 people to happened to be.... "together". Anyway, don't ship the main characters. They are toxic to each other. Thank you.
You may feel your favorite manga should be gathered together into distinct categories for your own reference and, now, you can do this with a LIST. After you've created your list or lists, you can proudly recommend them to other manga fans to showcase and share your taste in manga.
Umibe no Etranger