Knowing and Keeping Each Other

This is a side story, but it can also be read as a completely standalone short story. They met as boys, then briefly parted ways. Those unfamiliar feelings had barely begun before they settled deep within. As time went on, they only grew stronger and deeper, until one day, they finally burst forth. Entertainment Industry, Rebirth, Complete, Transmigrate Into a Book, Historical BL, Ongoing, Supernatural, Modern Entertainment Industry, Modern BL, Ongoing Theme: