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?