Why do light novels and manga have long titles?


So, I came across these comments in [an r/manga
post](https://www.reddit.com/r/manga/comments/82es8c/this_really_lightened_up_my_day_trapped_by_peach/):

> _KibaTeo:_ Even a short series became an isekai
>
> _MonochromeGuy:_ That statement itself just sounds like a LN title.
>
> _in0ri:_ Gotta triple the length of the title, bro
>
> _Irru:_ Even Though This Was Supposed To Be A Generic Romantic Comedy, I
> Somehow Got Transported To A Different World!
>
> _KibaTeo:_ . . . is that an actual series tho? cause it sounds way too
> plausible
>
> _CelioHogane:_ He just tripled the lenght as it was asked.

* * *

I was wondering... why _is_ this a thing, though? It seems that lots of series
these days (especially light novels) are given very long and descriptive
titles. Some classic examples include:

  * [_Oreimo_](https://myanimelist.net/manga/13667/Ore_no_Imouto_ga_Konnani_Kawaii_Wake_ga_Nai)
    * short for: _Ore no Imouto ga Konnani Kawaii Wake ga Nai_
    * translation: _My Little Sister Can't Be This Cute_
  * [_Watamote_](https://myanimelist.net/manga/28533/Watashi_ga_Motenai_no_wa_Dou_Kangaetemo_Omaera_ga_Warui)
    * short for: _Watashi ga Motenai no wa Dou Kangaetemo Omaera ga Warui!_
    * translation: _No Matter How I Look at It, It's You Guys' Fault I'm Not Popular!_

And here's a more recent series (that doesn't seem to have a shortened
nickname yet):

  * [_Imamade Ichido mo Onnaatsukai sareta Koto ga Nai Onna Kishi wo Onnaatsukai suru Manga_](https://myanimelist.net/manga/113626/Imamade_Ichido_mo_Onnaatsukai_sareta_Koto_ga_Nai_Onna_Kishi_wo_Onnaatsukai_suru_Manga)
    * translation: _A Story About Treating a Female Knight, Who Has Never Been Treated as a Woman, as a Woman_

One would think that having super long titles would be a disadvantage because
they'd be difficult to remember :P So, my question is, why is this style of
title so common? Is this a recent thing? How did this trend of super long
titles come about?




The Anime Man explains this in [his
video](https://www.youtube.com/watch?v=XiP00v8pjBQ).

TL;DR:

  * People get lazy to read the blurb of the novel (the short summary usually at the back of the book) to know what it's about, so a longer title will be more descriptive than titles like "Wish".
  * The LN industry is getting bigger, therefore everyone will eventually run out of titles to use (even movies there are some that have the same title which is not good), a longer title will make your LN unique and stand-out. [Top selling LN in the first half of 2019](https://www.oricon.co.jp/confidence/special/53075/11/) according to Oricon.

