Collect Sincerity in the Last Days

Ran Chen, an ordinary Blue Star college student, traveled through a catastrophic world. Awakening the true heart system after time travel. "I really want you to die well, hahahahaha, just kidding, don't take it seriously." Ding! Zhang Lei was sincere at this time and received a sincerity coin! "I really hope you feel better!" Ding! Zhang Xiaomei was sincere at this time and received a sincerity coin! "Just live well." Ding! Yang Ningwan was sincere at this time and received a sincerity coin! "You must win!" Ding! Everyone was sincere at this time and received sincerity coins × 99+