See it's likely that I forgot the plot of the game cause I don't remember if the hotel accepting guest or not. But still, why can't he just say the truth? what he said to Connie was not the full truth, why can't he just say the hotel isn't open for public?. It is quite obvious because when he said to Connie "if you are hungry or thirsty, there's vending machine you can use" instead of offering food. He deflected by mentioning his sister/childhood friend instead who's not present rather than taking responsibility to explain as co-owner.
Also Shortcake thought to herself shortly after hearing mc's decision was "sister/childhood friend had no problem with Jazmin staying. Even before paying, so what's different now?" though I don't remember exactly what happened to Jazmin that sister/childhood friend allowed her to stay at the hotel. Was it before she knew she is a masseuse?
Still if I was Connie it is a huge red flag when mc offered his own room, I'd rather get the hell out of the hotel right away

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Also sorry if I what I type is kinda all over the place, English not my first language and headache not a good combo
EDIT: Also I just remembered, how the hell then can they hold a big wedding event for a famous musician in the (game) world that also have the guests stayed at the hotel... mc also left the hotel that have no staffs and guests unchecked then looked for sister/childhood friend and had lunch with Jazmin OUTSIDE the hotel

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