itch.io

try anain and again and again!!!

You have to talk to that computer girl in the spare classroom, and have her bring Sakura there. The bodyguard would be looking for you, so try to stall for as long as possible, all while trying to increase Sakura's likability. Make sure it is at two hearts while the bodyguard is still outside. Ask Sakura what is disturbing her, then her guard will come get her. Go back in time again, buy a suit from the gift shop and talk to computer girl again, telling her to meet you in front of Sakura's family building. She'll have prepared fake invitation tickets. 

 From there, you'll just have to fuck around and find out, as many time rewinds as you want, until you save Sakura. I hope this helped.