>>4420724If we assume in character, with their combat skills, they'd do amazing until Walpy and might win but Chisato witches out. A first time loop would simply be Takina minimalizing magic use and Chisato playing therapy for the rest of PMHQ so they don't collapse as a group. From there 3 options, they beat Walpy, Chisato convinces Takina to let her die, or avoid the fight and focus on a campaign to evacuate the city only fight Walpy's familiars to save maximum people.
A lot changes due to combat skills and mentality. Chisato and Takina are surprisingly well-adjusted and can cope with earth shattering bad news. Otherwise, if they are dug into a deep as a hole as when PMMM in ep1, the two would likely accept enjoying their life till they die or witch out. There is no law of cycles given that Lycoris Recoil accepts status quo inherently.