The Host Club, along with some of their customers, visits a beach in Okinawa upon Haruhi's request. Hikaru and Kaoru devise a game to find out what Haruhi is afraid of. Kyoya hypes up the competition between Tamaki and the twins by offering up photos of Haruhi in middle school, refusing to explain where he got them. In turn, the hosts attempt to scare Haruhi, unsuccessfully. Meanwhile, Haruhi confronts two drunken thugs who threaten some of the girls and she's tossed from a cliff into the ocean. Tamaki rescues, then rebukes Haruhi for being so reckless, causing them to angrily avoid each other for the remainder of the day. Seeing that Haruhi doesn't understand verbal messages, Kyoya threatens to molest Haruhi to demonstrate how physically vulnerable she actually is and is successful in having her realize what everyone was worried about. Tamaki wins the competition discreetly in the end, finding out she has Astraphobia, the fear of thunder and lightning, when he sees Haruhi hide inside a wardrobe during a thunderstorm. The rest of the Host Club walks in just in time to see Tamaki covering Haruhi's ears and eyes to help deal with the phobia and accuse him of trying to trick Haruhi into an S&M situation. Tamaki is devastated Haruhi now thinks he is a pervert.
This episode provides examples of:
- A-Cup Angst: The twins assume Haruhi is self-conscious about her small bust and picked out a special two-piece swimsuit with a ruffle top to help conceal her small breasts.
- Anger Born of Worry: Tamaki gets upset with Haruhi because she almost drowned saving three girls from two drunk guys. Haruhi doesn’t understand that Tamaki was worried because she tried to do something on her own rather than get help from her friends especially since she has no martial arts experience like Hunny or Mori, which endangered her safety more.
- Beach Episode: This episode take place at the Ootori's beach resort.
- Mood Whiplash: Things start off fairly normal with the host club and their customers enjoying their time on the beach. Then three of the girls are approached by two drunk guys who wandered onto the property and Haruhi almost gets killed protecting the girls.
- Near-Rape Experience: Kyoya makes an attempt on Haruhi, but stops when she tells him he won't do it, since he gains nothing from it.
- Not What It Looks Like: Two examples.
- Tamaki walks in a topless Kyoya and Haruhi who is sitting on the bed in the dark and he immediately makes assumptions about what they were doing.
- As Tamaki is helping Haruhi overcome her fear of thunderstorms, which involves her using a blindfold and earplugs, the host club walks in the room and accuses him of being into S&M.
- Silent Treatment: Haruhi and Tamaki initially refuse to talk to each other after Tamaki yells at her on the beach.
