the running theme of inah being willing to put herself on the line because of her principles (both physically with her body being prone to injury and emotionally with her willingness to be the "bad guy") vs kijun who gets fired up on her behalf like he really just cares; even before he fully realized he liked her in a romantic sense, back when she was just his scary (kinda pretty tbf) boss
i really do love how you can see how much their relationship has grown through their parallel scenes like in ep 6 he's grown more protective of her but also he's not as "scared" of her anymore (guy's even willing to tease her lol) and inah's also gotten more comfortable showing him a more honest side (like she still obviously downplays her wounds and that hurts comment was more for his benefit but there's still an element of truth there)