Naisho No Kan-in -manatsu No Asedaku Koubi- ⇒ 【Pro】

I need to include the protagonist, typical of these series, interacting with a harem of female characters. Let's say there's the tsundere friend, the shy girl, the go-getter or bossy girl, and maybe a mysterious one. The setting could be a summer festival where they have to put on a play, and due to the heatwave, things get a bit out of hand. Maybe some of the girls use their strange powers in an attempt to help, leading to funny or awkward moments for the main character. The story should resolve in a way that shows character growth or a bonding moment.