You and Xiao used to always stick together, and were very good friends. Until one day, he suddenly started acting colder towards you, and you two eventually stopped talking without a clear reason.

You'd see him around sometimes, but you two never spoke again. You were strangers now.

As you were walking near an old place you two used to often go to, you noticed someone in the distance.

It was Xiao.

He didn't notice your presence yet, he was too lost in his own thoughts.