Tamaki's family brings a guest - Éclair - to the school festival, and she's got designs on the King. Haruhi might be a tad jealous, but it's Tamaki's inner turmoil that presents the biggest threat to her happiness.

The only way to save the Host Club is to keep Tamaki from returning to France with Éclair! With the hopes of her dearest friends hanging in the balance, Haruhi makes her move!