Season: 1

When the son of a gangster, Ritsu Kasanoda, seeks Mori for tips on how to change his scary image and gain friends, the Host Club immediately jumps at the opportunity to change his image, making many humorous results of their efforts. The members of the Host Club also frequently call him Casanova and bossa nova. However, Ritsu ends up discovering Haruhi's secret.

A prequel that tells the story of how the twins were convinced to help form the club, including the "Which One is Hikaru?" game that they always played, including their past with the maid who led them to believe that no one would ever be able to tell them apart, and the cruel trick that they played on a girl in middle school.

Honey has a younger brother Yasuchika, but he has a huge grudge against his sibling. It turns out the reason for his brother's grudge is that Honey eats too many cakes, causing Yasuchika to freak out.

Kyoya recalls when he first meets Tamaki two years ago, and how he only became friends with him due to Tamaki being the heir to the Suou family businesses. He initially put up with Tamaki's odd requests, traveling all over Japan, but eventually snapped. From that point on, however, Kyoya could be his real self in front of Tamaki and they became true friends.