The Host Club drags Haruhi to an Ootori-run water park where a wave pool separates Honey from the others. Haruhi and Mori set out to look for him and during their search, she learns that the two Hosts are cousins by marriage. Meanwhile, Kyouya hires his family's private police force, The Black Onion Squad, to look for Honey and arrest any suspicious people. The squad mistakes Haruhi for Honey and Mori as a suspicious person...