The first chapter when there two met, i though the mangaka gonna paring the predator and this loli together. (the same chapter when predator first have crush on mask girl later)
You know, the devil girl now met a pureness child-like can create a interesting conflict, she not effect by her bait, It can have great develop, same as what develop we have right now but not start with "OMG, her lip look great, i gonna faithful in love now"