It's almost Christmas, but Chitoge's not in a festive mood because her mother, Hana Kirisaki, is visiting Japan for the winter holidays. Chitoge introduces her false boyfriend to her workaholic mom, who then decides to test his mettle—by making him work as her secretary! While laboring away, Raku can’t help but notice the strained relationship between Chitoge and her mother. Is there anything he can do?