SNES style dating sim + rank
Give treats to a girl until you have a full heart. Once you have a heart you can invite her to your room. When she's in your room you press ( - ) on the controller and the oldschool dating sim will start. It's also showing your rank on the right.
Yuko Yureino
In order to unlock Yuko Yureino you must get the phone number from every girl in the free missions and keep doing free missions for a while afterwards, eventually you should see a mission called "A spooky SOS from a ghost~ Oooh~" beat it to obtain Yuko Yureino's phone number and unlock her.
