Is there more stuff after checking on the gym on day 4? Im currently stuck in that part, its after where Van hears the 2 girls at the gym and the mission is still trying to find the missing girl (wich i forgot her name). Also cool game
You probably already got it but here goes just in case: When you're trying to find the missing girl make sure to talk with the new gym NPCs, then you'll probably need to head to the shelf where her shoes are to finally end up in the showers.
After completing the mission, you'll automatically head back to your club and then move forward to "Nico's Event", there are some optional scenes for this update which are the Hazel Scene inside the gym, Colleen's event inside the kitchen and Lynn just before entering the room where Nico will "test" you.
Thanks for playing ;)