Impressive work for a fresh release, thats a good 2-3 hours of great quality content.
A few suggestions:
Since you are supposed to manage the island, you should have a timetable of the working days/hours for the different girls.
That still keeps their free time and location a mystery, but at least gives a few clues where and when to find them.
Searching blindly made it very frusttrating. I usually went to the location and spammed +1 hour just to see if the event is even on that day or if its a complete waste to plan the day schedule for it, then rolled back to the morning and played the day.
Maybe even give the option to give them a day off to get to the events faster.
Like "Talk about .." -> "Dont work tomorrow" +2 Love, -2 Base Income tomorrow (Blue Multiplier Number)
Most events are unnecessarily grindy. Especially the kitchen training scenes. After each scene you should get enough stats for another one and not have to repeat the same scene with no new content 9 more times. Doesnt need to be linear, you can interlace them easily with the stat requirements. Strip Lvl 1 -> Strip Lvl 2 -> Hand Lvl 1 -> Strip Lvl 3 etc.
Currently it starts with Strip Lvl 1 -> REPEAT (5x) -> Strip Lvl 2 -> REPEAT (5x). Thats no fun, just unnecessary grind.
Bugs:
Kitchen Training (Hand Spanking) with clothes does not consume time