But if my guess Is correct our DENSE AF MC is going to say: dont worry I'll be careful! And leaves making senpai go to her room put some panties on and use her powers as many times as needed until MC decides to stay.......naaaahhhhh he is obviously going to agree to it in one go for the sake of plot and shit.
@chenando1 Since she has already heard the forecast and chose the date and time to conveniently coincide with both the storm and her parents being gone means this was a contrived setup. MC doesn't even realize how deeply he's being manipulated. It really disgusts me that he has no curiosity or seems to care.