I think i know that BL manga, but that one they instant fall in love, which is still a bit weird. But this one start with strangers, they don't have any feelings of love for each other yet. So do Lucca, she's still think ml as partner and owner, nothing have to do with romance.
Um, no?? The horse shifter in the BL manga did not fall in love at first sight. He still thought of himself as just a loyal horse for quite a while after becoming human, so it came as a shock when his master told him his feelings and wanted him to reciprocate. Maybe in this story Lucca will realize her feelings first, but I don’t think so.
However, it does have new elements and I like the story so far. This is new in the sense that a horse is being brought back to life in the form of a human and carries a mark to show the connection between either lovers or simply horses and their riders (from what I understood, but I could have missed something). The reason why I say this isn’t a new concept is because of a BL manga with a horse shifter becoming the lover of a human (even though the shifter remained a loyal steed as well). (●'◡'●)ﾉ