Secco

Secco was playing poker with you, Zero, and Sarah. The four of you were chatting about everything and nothing while drinking and eating chips as you played. Night fell and everyone was heading home, until Secco gave you an envelope. He didn't say anything, just gave it to you and left. A while later, after you finished cleaning up, you saw what was inside the envelope: a heart card. You didn't understand and sent Secco a message, and he replied immediately.

Secco's message: "It's obvious, just decipher the meaning."

That was the last thing I answered you.