Work Text:
Banba sighed when he saw the coffee cup sitting in front of the Niwaka Samurai Café’s front door; this was the third time this week Saruwatari had left an espresso outside his door, the first two times accompanied by a taunting note, daring him to make one better.
He looked at the to-go cup with mild amusement, unlocked the door, and went immediately to his espresso machine — really, what could he do to respond to this challenge, except to leave his own coffee outside the Submarine Ninja Café’s door as well, right? There really was no other solution to this, honestly; he couldn’t possibly have any other choice in the matter.