the main characters are both actors, playing the two main leads in a live-action adaptation of a BL manga, one thinks the other hates him since he acts coldly towards him at the start when he's in fact his biggest simp, sounds cliché but it's very sweet! (which makes this series a live-action adaptation of a BL manga that's about a live-action adaptation of a BL manga)
(which makes this series a live-action adaptation of a BL manga that's about a live-action adaptation of a BL manga)