The fifth arc of A Certain Magical Index, consisting of volume 5 of the light novels, chapters 22-33 of the manga, episodes 18-20 of the anime's first season and episode 1 of the anime's second season.
- A Day in the Limelight: For Mikoto, Index and Last Order.
- Arc Villain: Etzali and Ouma for Touma, and Amai Ao for Accelerator
- Blow You Away: The Azusayumi gives Ouma control over wind.
- Bullying a Dragon: Everybody who keeps attacking Accelerator, no matter how many times he effortlessly kicks their asses.
- Call-Back: Accelerator's adventure parallels Touma's from the Index arc. He runs afoul of bullies, then meets a mysterious and annoying girl, sees her naked, decides to save her, uses his powers to save her from something affecting her mind, and suffers brain damage for it.
- Entertainingly Wrong: The various Magic Side factions think Touma is assembling an army to take over the world, just because he has so many powerful friends.
- Heel–Face Turn: Accelerator decides to do the right thing for a change.
- Hero of Another Story: Accelerator's adventure happens around the same time as Touma's.
- Incest Subtext: Tsuchimikado's sister notes that she likes incest fiction.
- Indirect Kiss: Touma and Mikoto accidentally mix up their hot dogs, leading Mikoto to freak out and spend some time trying to figure out which is which before giving up. Sharp-eyed viewers will note that they did end up switching.
- In Love with the Mark: The imposter was assigned to kill Touma and everyone close to him, but fell in love with Mikoto.
- Long List: Pierce Aogami's list of fetishes. Here's the light novel version:Pierce Aogami: Ha, you're too naïve, Kami-yan. I have a wide range of acceptance when it comes to women: not just heroines that fall from the sky, but also step sisters both younger and older, step mothers, step daughters, twins, widows, upperclassmen, underclassmen, classmates, female teachers, childhood friends, rich girls, blonde hair, black hair, brown hair, silver hair, long hair, semi-long hair, short hair, bobs, drill hair, straight hair, pigtails, ponytails, braided hair, wavy hair, messy hair, ahoges, sailor uniforms, blazer uniforms, PE uniforms, judo uniforms, archery uniforms, kindergarten teachers, nurses, maids, policewomen, shrine maidens, nuns, military officers, secretaries, lolis, shotas, tsunderes, cheerleaders, stewardesses, waitresses, white gothic, black gothic, china dresses, weak albinos, crazy day dreamers, girls with multiple personalities, dominatrices, princesses, kneesocks, garterbelts, crossdressing beauties, glasses, eyepatches, bandages, school swimsuits, one piece swimsuits, bikini swimsuits, slingshot swimsuits, ridiculous swimsuits, non-human girls, ghosts, animal ears, etc.- any female is within my area of acceptance.
- Skewed Priorities: Touma, when a guy is threatening you with a crossbow, now is not the time to be thinking about homework.
- Shooting Superman: Everybody keeps attacking Accelerator no matter how many times they see everything get reflected.
- The Unreveal: Whatever Touma said to the imposter at the end. It certainly made Mikoto blush, but we don't get to hear it.Mikoto: I know he doesn't mean anything by it. I know I'm nothing special. But he makes it really hard!
- Unusually Uninteresting Sight: Seriously, nobody in the restaurant bats an eyelash at Last Order wearing nothing but a blanket. Does the restaurant not have a "No Shirt, No Shoes, No Service" policy?
- Weirdness Censor: Even though several of the restaurant's staff and customers were looking at the scene when Ouma attacked, they somehow don't notice him and think Touma did it.
