After finally popping the question, Masugu hunts for a rock that will shock her…but Yui has other plans. While butting heads over rings and real estate, one wrong step-and one big mouth-lands Masugu in the doghouse. But while their love carries them through every fight and frustration, that same love quietly breaks a coworker's heart. And as word of their engagement ripples through the office, Tsuji-san is tempted to break her silence-and confess her feelings once and for all.