Candy Color Paradox, Vol. 6 (manga)

Ready to take their relationship to a whole new level, Kaburagi and Onoe make the next big leap on their path to love - finding an apartment together. But end-of-the-year holiday cheer turns into holiday dread, with endless work keeping the two from having time to see each other!

Onoe starts worrying that Kaburagi is overworking himself, but his concern comes off as criticism, sparking the couple’s first big argument and driving Onoe to say that maybe they shouldn’t live together after all. And even after they make up, Kaburagi starts getting cold feet about the big move...