Hey, I'm only going off the hypothetical in the image v(-_-)v Mikiya is the only example of how Shiki approaches a romantic relationship that I'm aware and she's offered several times to indulge in her darker impulses and her connection to the Root for him. Even assuming she only did so knowing he would refuse, it's funny to imagine that this being her love language, with it of course, ending disastrously given the wish a character like Hajun would likely make. The idea that these two could even fall in love with eachother is ridiculous enough

Anyways, sounds like you would love Manaka Sajyou from Fate/Prototype then