Scott Pilgrim vs. Snow Flower and The Secret Hall Pass/Shout Out

Chapter One
 * The members of Roderich's harem include Rangiku Matsumoto, Kushina Uzumaki, and Oliver Mira Armstrong.
 * It was mentioned that Elizabeta won a pulitzer prize for writing a book called, "Pride and Prejudice and Pimp Soul Reapers". "Pride and Prejudice and Pimp Soul Reapers" is another fanfic by Oxenstierna D. Yuki-Rin.
 * After Crocodile rejects him from marrying Aki, Shizuo wonders why he can't have a girlfriend who lives in Canada.
 * Roy thinks that Shizuo's penpal is Kanye West.

Chapter Two
 * Two of the employees at the restaurant Shizuo works at are Temari and Adelheid Suzuki.
 * Kida sings a rendition of Peter's rendition of Rock Lobster. He even tells Shizuo that he'll be okay, just like Cleveland.
 * Excalibur makes a brief cameo.
 * Anri threatens Shizuo and Izaya with making them watch Divine Secrets of the Ya-Ya Sisterhood.
 * Elizabeta and Roderich's magazines include Yen Press and Playboy.
 * Roderich and Elizabeta plan on watching a Care Bears video while they play with Strawberry Shortcake dolls. By "Care Bears", we mean "Kama Sutra".
 * Izaya takes Shizuo to the mall to practice their parkour in hopes of meeting the dance group Jabbawockeez in person.
 * During the parkour hide-and-seek scene, Firo hides in the dressing room of a Guess? store.

Chapter Three
 * Gintoki mentions that one of his plans for the night was to watch anime whose mangas were serialized in Shounen Jump.
 * America plans on watching Jackass while England goes to Crocodile's dinner party.
 * Shizuo and Izaya get some coffee at Starbucks after seeing a movie. This is a refrence to the Charlie the Unicorn parody "Charlie teh Unicorn".
 * The books Izaya says that Elizabeta has in her personal libray include Snow Flower and the Secret Fan, Crossing California, The Joy Luck Club, the entire Harry Potter series, A Tree Grows in Brooklyn, the entire Fullmetal Alchemist series, the entire One Piece series up to the end of the Impel Down arc, all of the Baccano light novels, and The Princess Diaries.
 * "Yep! And we're gonna do whatever the hell we please, for tonight we dine in Hell." (Said by Izaya)
 * Shizuo and Izaya eat Lunchables while they watch Eureka Seven.
 * Gintoki gives up on his Shounen Jump anime marathon mid-way through Bakuman｡ and before he was supposed to watch Sket Dance and read the new chapter of D Gray Man.
 * During his rant in French on why Wolfgang Katsuragi is better than the Chinese Enlai Li, Huey Laforet mentions that Wolfgang shops at Radio Shack, Best Buy, and the Apple Store.
 * Shinpachi mentions that he and Tae are from the Kabuki-cho District of Tokyo, which is a refrence to the anime they star in.
 * Huey tells Shinpachi and Tae, "Your mother plays card games in Hell", albiet in French.
 * Two of the prizes Shinpachi hopes on winning at the charity auction at Crocodile's dinner party are an iPad and 4-day passes to Anime Expo.
 * The item Ennis wants to win at the charity auction is a season pass to Disneyland.
 * Shizuo's ringtone is the Yuya Matsushita song Trust Me, which is the ending theme to the anime Shizuo is from.
 * Shizuo and Izaya go to Hot Topic to hide from America and Roy before hiding in Abercrombie and Fitch. They even disguise themselves as shirtless mannequins at Abercrombie and Fitch, which refrences the number of photographs of shirtless males the stores have.
 * America complains that Roy gets to search for Shizuo and Izaya on the mall level with Hot Topic and the Hello Kitty store.
 * Shizuo, Izaya, and America run through the Apple store, where Estonia tries to get them to try out the new iPad.
 * Gintoki mentioned that he could hear America, Shizuo, and Izaya from Williams-Sonoma.
 * Shizuo and Izaya go to Burger King after their mall adventure.
 * It is mentioned that Ennis won a furniture set from IKEA in the charity auction.

Refrences That Couldn't Fit Anywhere Else
 * The title is a mash-up between Scott Pilgrim vs. The World, Snow Flower and the Secret Fan, and Hall Pass.
 * Recognize scenes from Geishas of Winter in this fic? This fic is pretty much the background events of Geishas of Winter told through the eyes of one of Aki's rejected suitors.
 * Out of all the romance novels set in Asia, this seems to parody Snow Flower and the Secret Fan the most, with Izaya and Shizuo as pen-pals and whatnot.