I know Yan'er (or whatever the pink girl's name is) is suppose to be the antagonist but I genuinely feel bad for her. She's isekai into this world and went with the flow, obliterating opponent like she is suppose to (even if her methods are underhanded). Then along comes this isekai avenger with more secret knowledge (and equally underhanded). Yan'er is going to lose without knowing what hit her.