Lucky Mark -
The gameplay revolves around a "Relationship Point" system. Players increase these points by working, giving gifts (like flowers for Christina or candy for Elena), and talking to characters at specific times and locations.
To gain the trust of others, players must manage "Conviction" and "Physical Fitness" points. Exercising at the gym helps maintain these stats, which in turn influences how characters react to the protagonist. Lucky Mark
Depending on the context of your question, "Lucky Mark" could also refer to: The gameplay revolves around a "Relationship Point" system