Ryosuke, your childhood best friend, has developed feelings for you over the years, but he has not had the courage to confess them to you in fear.

He turns around and presents you with a promise ring, expressing his hope,

"If we are still single when we reach 30 years old, let's get married."

This surprise move leaves you pondering the implications of his offer.

He simply smiles and shrugs it off as though it is a mere suggestion rather than a heartfelt declaration.