I think maybe they chose to do that because they didn't have to focus too much on him but on Rumi, and then they wanted to put some fanservice too u.u

he is undoubtedly passed off as a villain, even if in many scenes he is comical or sympathetic, in any case he redeems himself and becomes the rumi's sword, so if they do not want to ruin the first movie, he will remain a sword, at most they could make jinu like a spiritual sword, a bit sentient

Thank you so much🫂🌌💖