I honestly don't know if this is shounen ai or just shounen, but given the author's other works I think this has a tinge of shounen ai so I'll put it here just in case
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.
Isshunsaki Wa Koi