Genres:
comedy, drama, romance, slice of life

Plot Summary:
Haruhi is a poor tomboyish student at a school for the ultra-wealthy, able to attend because of a scholarship, and unable to even afford a uniform. One day, she stumbles across the decidedly peculiar but very popular Ouran Host Club. She tries to leave, but accidentally breaks a vase, and unable to pay for it, she's told that she'll have to stay and do odd jobs. That is, until they decide she would be more valuable as a club member. Not realizing she's female due to her appearance, they fix her up and give her a male uniform. She's an instant hit, so they decide to have her keep up the charade even after they find out the truth. Haruhi, being average almost to a fault, doesn't know what to make of the unconventional activities of the Host Club (or of the even more unconventional members), but having little choice, she plays along. Before long, real bonds are formed, friends made, and Haruhi finds herself accepted in a way she could never have been otherwise in this affluent school.

Here's the episode List:

You're A Host From Now On
A High School Student Host's Job
Beware Of Physical Examinations
Manageress Invades
Twins' Quarrel
Elementary School Student's Mischievous System
Jungle pool SOS
The Sun, Ocean and Host Club
The Challenge of Roberia Girls School
The Fujioka Household's Daily Life
Onii-chama Is A Prince
Honey-senpai's Three Unsweet Days
Haruhi in Wonderland
Interview the famous host club
Karuizawa Refreshing Battle
Haruhi and Hikaru, the Great First Date Strategy
Kyoya's Reluctant Day Off
Chika-kun's 'Overthrow Honey' Declaration
Roberia Girls' Academy Strikes Back
The Door Opened by the Twins
The Day Until It Turns Into A Pumpkin
The Desire to Apprentice to Mori-senpai
Tamaki's Unrealized Melancholy
And Kyouya Met
The Host Club's Declaration of Dissolution
This is Our Ouran Festival

Episode #01 - You're A Host From Now On


Summary:
Scholarship student Haruhi Fujioka arrives at the elite private school Ouran Academy where she is mistaken for a boy due to her decidedly male appearance and personality. Haruhi stumbles upon the host club while looking for a quiet place to study and, while trying to escape, accidentally breaks an vase costing eight million yen. To pay off the debt, Haruhi is forced to become a host and obtain one hundred "requests" from customers. One by one, the other host members come to realize Haruhi's true gender except for Tamaki Suo. Haruhi later gets into a fight with Ayanokoji, one of Tamaki's jealous customers, changing her quota to one thousand customers. The fight is broken up when Haruhi and Ayanokoji are doused with water, requiring Haruhi to change into a dry uniform. At this point, Tamaki walks in on her while she is undressed, discovering her to be a girl.

Episode #02 - A High School Student Host's Job

Summary:
The host club finds out that one of their regular customers, Kanako Kasugazaki, one of the few that skips from host to host regularly, is having trouble with her fiancé, Toru Suzushina. The group then cooks up a plan to help, involving a dance, in which the "queen" of the dance would receive a kiss on the cheek from Tamaki. However, when Kanako is chosen as the queen, Hikaru and Kaoru Hitachiin announce that Haruhi would be giving the kiss. Tamaki realizes this will be Haruhi's first kiss and, jealous, runs to stop her and accidentally pushes her. Haruhi ends up kissing Kanako on the lips instead.

Episode #03 - "Beware the Physical Exam!"

Summary:
The time has come for the school's physical examinations, so the host club must find a way to protect Haruhi's secret for being a female. Their attempts, including Tamaki disguising himself as Haruhi, fail miserably until Kyoya Ootori steps in, with a doctor who promises not to reveal her secret. Meanwhile, someone accused of attempting to "make a pass" on one of the female students, Yabu, known to be a quack, is actually searching for his daughter after she and her mother left him due to financial problems. Kyoya points out that, if the man's family is really that poor, the girl would be attending Ouran Public High School, rather than the prestigious and very expensive Ouran Academy. Tamaki gives him directions, explaining that, even though he might get hurt later, it's up to him to find the truth.

Episode #04 - "Attack of the Lady Manager!"

Summary:
The host club must deal with their new self-asserted manageress, Renge Houshakuji, a French otaku who claims to be Kyoya's fiancée. She decides to enhance the roles of the host club by allowing them to cosplay a dark side of them. Eventually, this leads to Renge making a movie for the host club, with each host acting out their new roles. She gathers two students to play villains in this movie, however they never agreed to do such a thing. Haruhi attempts to protect Renge from their meager attacks, dislodging her contact-lens in the process, causing her to appear to be crying in pain. Tamaki hurries over, angry at the thought someone has hurt her, only to find out that it was her contact that fell out. Haruhi finally helps Renge understand to know someone by who they are and not by what they seem to be. Unfortunately, the movie that was made by Renge was sold throughout the whole academy, to apparent universal acclaim, by Kyoya by saving the film before breaking the camera lens and lessening the violence.

Episode #05 - "The Twins Fight!"

Summary:
Hikaru and Kaoru beg to be allowed to visit Haruhi's home, but she refuses. Haruhi comments about the differences between Hikaru and Kaoru, which triggers a fight between the inseparable siblings, even making them dye their hair different colors, blue and pink, in order to be told apart. The feud between the twins leads to them fighting constantly. Eventually Kaoru is about to use the Belzeneff doll which he obtained from Umehito Nekozawa, the president of the black magic club, and threatens to write Hikaru's name on the back of the Belzeneff doll, completing the curse. But Haruhi intervenes and snatches the Belzeneff doll from Kaoru. When Haruhi finally stands up to their fighting, she tells the twins that if they apologize to each other then they can come to her house. However, she then turns the Belzeneff doll over, seeing that "blank" was written on its back, revealing that it was all just a trick by the twins to be allowed to visit Haruhi's house.

Episode #06 - "The Grade School Host is the Naughty Type!"

Summary:
An elementary school brat, Shiro Takaoji, seeks help from the host club to win the heart of women. Renge helps develop a role for him, being a naughty type. But Shiro denounces the whole club as idiots and runs away. The host club infiltrate the elementary school, disguising Haruhi as a middle-school student and Mitsukuni "Honey" Haninozuka as an elementary-school student. The club then discovers that Shiro has a crush on a girl who would soon be moving away. Tamaki explains to that Shiro only wants to win the heart of the girl he has a crush on, Hina Kamishiro, by joining the classical music club and playing the piano with her to make her happy. Shiro learns his part of the piano duet he was supposed to have played with her, and the host club ends up allowing Shiro and Hina to have a small concert in the host club lounge.

Episode #07 - "Jungle Pool SOS!"

Summary:
The host club drags Haruhi to an artificial tropical water park, but an accident involving the wave pool separates Honey from the rest of the gang. Haruhi and Takashi "Mori" Morinozuka separate from the rest of the group to look for him, and Mori carries Haruhi due to the fact that she is scared of the jungle animals. Haruhi wonders aloud about Honey and Mori's relationship, and then twins explain that they are in fact cousins by marriage. Meanwhile, Kyoya hires guards to look for Honey as well as to arrest any suspicious people. However, they end up mistaking Haruhi as what Kyoya had described Honey as, as well as mistaking Mori as a suspicious person. Honey swings in on a vine, amazing Haruhi with his martial arts ability, as he quickly subdues the guards. The guards apologize to Honey for attacking him, realizing that Honey is actually a world-renowned martial-artist. The host club reunites, as Haruhi mentions that she would rather enjoy visiting an actual beach.

Episode #08 - "The Sun, the Sea, and the Host Club!"

Summary:
The host club, along with some of the customers, visits a beach in Okinawa upon Haruhi's request. Hikaru and Kaoru devise a game to find out Haruhi's phobia. Kyoya hypes up the competition by offering up photos of Haruhi in middle school, refusing to explain where he got them. However, Haruhi is thrown into the sea, after defending some girls who were being intimidated by a pair of drunken punks. Tamaki rebukes Haruhi for being so reckless, causing them to avoid each other for the day. Kyoya appears to try to sexually assault Haruhi, only to reveal her vulnerability, convincing her to apologize to Tamaki. Tamaki wins the competition discreetly in the end, finding out she has astraphobia, the fear of thunder and lightning, when he sees Haruhi hiding in a closet. However, the rest of the host club walks in at the most inopportune moment, as he covers her ears and eyes to help deal with the phobia. Unfortunately, the rest of the host club misperceives Tamaki involving Haruhi in sexual activity.

Episode #09 - "A Challenge from Lobelia Girls' Academy!"

Summary:
Benio "Benibara" Amakusa, head of the Zuka club at Lobelia Girls' Academy, chances upon Haruhi and, instantly recognizing that she is a girl, tries to convince her to join her school and her club. Convinced that Haruhi will leave them, the boys dress up as girls to show Haruhi that she could be around boys and girls at the same time. Haruhi reveals that she came to Ouran Academy for a reason, and says that she was never planning to leave for Lobelia Girls' Academy in the first place. The Zuka club girls leave, but refuse to give up, warning the club that they will be back for Haruhi.

Episode #10 - "A Day in the Life of the Fujioka Family!"

Summary:
Interested in the unknown ways of a "commoner's lifestyle", the host club makes an unannounced appearance at Haruhi's house to meet her family and see how she lives. Unintentionally, all the club members make themselves rather unwelcome, constantly commenting on how small the house is, and asking for things. Then, just as Haruhi is leaving to get food for lunch, her father, Ryoji "Ranka" Fujioka, arrives, revealing that he is a transvestite. Haruhi then leaves, and Ranka asks the host club to come with her as she follows Haruhi, partly to watch Haruhi being so independent, and partly so that he can be seen with a group of handsome boys. Tamaki then realizes how independent Haruhi is, as well as some reasons why.

Episode #11 - "Big Brother is a Prince!"

Summary:
Tamaki enlists the help of Renge in teaching Nekozawa to become the princely figure his little sister, Kirimi Nekozawa, is convinced he is. She lives her life waiting for her princely brother to save her from the monster in her house, who is actually Nekozawa in his cloak and wig, having to cover his skin and hair due to photophobia, his sensitivity to light. Tamaki and Renge help him to learn to act princely and to avoid occult references, and help him face his photophobia, convincing him that it is just psychological. Eventually this leads to him saving Kirimi from a large, unfriendly cat, since she has ailurophobia, the fear of cats. This convinces her of his bravery, despite the wig and cloak that he wears. Despite him overcoming his photophobia, he still succumbs to his sensitivity to it and collapses afterwards. This makes the host club believe that they were wasting their time, but in reality, Kirimi appears to be able to accept Nekozawa, even in his cloak and wig.

Episode #12 - "Honey's Three Bitter Days!"

Summary:
Honey gets his first cavity, and the number one rule until the cavity is fixed is no deserts or snacks. Honey attempt to try out many strategies to be able to eat a desert or a snack, but to no avail. He then takes his frustration out on Mori, who is being strict on Honey. But Honey realizes that Mori was punishing himself for not telling him to brush his teeth twice a day. A few days later, Honey's cavity is relieved, thereby being allowed to eat deserts and snacks again.

Episode #13 - "Haruhi in Wonderland!"

Summary:
Haruhi's dream about the day of her admission into Ouran High School becomes a illusionary Alice in Wonderland fantasy. Her friends try to tell Haruhi something important, but she only realizes it when in court. At the end of the dream, she meets her mom, Kotoko Fujioka, as the Queen of Hearts, who tells her to "enjoy a dream like student life." She wakes up with tears in her eyes, and sees the host club dressed up in costumes similar to the ones they wore in her dream. She ends the episode by commenting on how the host club have too much fun.