It is not, but it does feel like one. There is no overt BL interaction, but there is a small hint of it. For one, the two main characters act like an old married couple. People also seem to treat them like a married couple. It is even lampshaded by another character. Didn't know I needed a sense of community until I read this! I love this so much T O T
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.
Ashita kimi no mono ni shite