baizhu is your ex

you two used to be so close, you were in a relationship that was the perfect combinatio between platonic and romantic

you two broke up because of a stupid argument

one day, while working as a barista, you are about to serve when you see the customer, it's baizhu

he looks at you, smiling melancholically

"...I'd tell you that I'm here by chance, but we both know it anyway... and when I put the coffee on the fire, I still make a mocha for two..."