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Light Novel / I Saved Too Many Girls and Caused the Apocalypse
aka: I Saved Too Many Girls And Caused The Little Apocalypse

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On Rekka Namidare's first day of high school, a strange uniformed being named R claiming to be from the future appears before him and tells him that his indecisiveness has caused a war of epic proportions, and that he must work to prevent that future.

To elaborate: There are stories involving worlds being doomed, and a hero is needed to save the day. However, there are worlds where there is no such hero. Namidare males carry the responsibility to go to such worlds, save them, and be their hero. The trouble came when Rekka's efforts caused many heroines of those worlds to fall in love with him, and he was unable to choose any of them, resulting in them fighting over him, sparking the cosmic war in the future R came from. R's purpose is to make sure he actually chooses one of the heroines he saves.


Things get complicated when his childhood friend Satsuki Ootomo, who wrote a letter intending to confess to him, nearly gets kidnapped by a mysterious man, and in his haste to get away with Satsuki, he runs away with the wrong girl: an alien girl who had fled from an Arranged Marriage from another world and had just happened to be on Earth, and at the scene. After getting into her spaceship, he then gets summoned to yet another world which is in danger of being overrun by a demon king...

Ore ga Heroine o Tasukesugite Sekai ga Little Mokushiroku!?note , English title I Saved Too Many Girls and Caused the Apocalypse, is a Light Novel written by Namekojirushi with illustrations by Nao Watanuki (of Asura Cryin' fame), and first published on June 1, 2011. A manga adaptation illustrated by Kouji Hasegawa was first released on April 27, 2012.


Tropes found in this series:

  • Achilles' Heel: The Demon King's first form in Harissa's story is invulnerable to all magic except holy magic. Subsequent forms are immune to all forms of magic... but Rekka has a laser gun.
  • Action Girls: Most, if not all of the heroines, either are this or eventually become this.
  • Akashic Records: Satsuki has access to this, which allows her to access information on any topic in the universe.
  • Alliterative Name: Harissa Hope.
  • Ambiguous Gender: R. Eventually revealed to be a girl.
  • invokedAnticlimax Boss: The Demon King in Harissa's world.
    Subtitle: All of Harissa's suffering up till now... ended just like that?!
  • Apologises a Lot: Harissa.
  • Arranged Marriage: Iris is forced into one by her father. Rekka has to save her from it.
    • To be fair to her father, he was literally blackmailed with the safety of his entire planet. And when Rekka gets involved, our world comes under the gun as well.
  • Balanced Harem: Very much so.
  • The Beard: Iris tries to get Rekka to act as her lover to get out of an Arranged Marriage.
  • Big Bads: In many of the worlds Rekka goes to. Of course, he defeats them.
  • But Now I Must Go: Rekka, multiple times.
  • The Call Knows Where You Live
  • Chick Magnet: Rekka attracts the heroines and even sub-heroines of whichever world he ends up in. One wonders what would happen if he ended up in places like Gamindustri or Gensokyo...
  • Childhood Friend Romance: Rekka and Satsuki... at least, if not for Rekka's harem.
  • Chronic Hero Syndrome: All Namidare males are this due to their birthright.
  • Combat Pragmatist: Rekka, sometimes.
  • Curbstomp Battle: happens on a few occasions, particularly early on.
    • When faced with the Demon King of Harissa's world, he is level 1 but armed with what amounts to a Wave Motion Gun. The Demon King is able to regenerate, each time doubling his power and resistances, but still he's barely able to get three words in before his upper half is again vaporized. It is eventually demonstrated however that he really did grow stronger with every new form, since his very last form wasn't vaporized but instead was merely barbecued all the way through.
  • Dangerous 16th Birthday: Namidare males' responsibilities of saving other worlds begin from their sixteenth birthday.
  • Extremely Short Timespan: In one day, Rekka manages to be the hero of Harissa's world by killing the Demon King, ended Satsuki's torment by defeating the most powerful magician, and managed to get the Satamonia kingdom to back down from Iris' marriage.
  • Girlish Pigtails: Iris.
  • Gonk: Iris' Arranged Marriage partner. No wonder she wanted to get out of it so badly. (Also, he has a bad attitude.)
  • Good with Numbers: Harissa is able to calculate the coordinates of the Demon King's Lair, allowing Rekka to use his warp watch to help him bypass the barrier surrounding the lair. (And go back.)
  • I Just Want to Be Normal: Satsuki, at least initially.
  • Instant Awesome: Just Add Dragons!/Our Dragons Are Different: The Demon King in Harissa's world is a dragon.
  • Irony: Apparently, Rekka died in the war where the heroines were fighting over him.
  • Loads and Loads of Characters: The numerous heroines Rekka saves. And that's not even counting the side characters...
  • Marshmallow Hell: Rekka, on at least one occasion.
  • Marry Them All: One of R's suggestions to prevent the war.
  • Nice Job Breaking It, Hero!: Rekka knows that not following the plot line of each story could lead to complications. Of course, there's no saying that he can't bypass said complications the same way he created them either.
    • An example is when when he nearly gets Harissa executed despite felling the Demon King because he didn't pull out the Hero's Sword from the rock before going to defeat it (thereby giving no proof of being an actual hero), and it couldn't be pulled out unless there was a Demon King to defeat. He uses Iris' warp watch to warp it out, as well as her Bag of Holding to transport the Demon King's head back as proof of his kill.
  • Oblivious to Love: Rekka couldn't even figure out that Satsuki wanted to confess her love to him. R calls him out for it.
    • In fact, this is implied to have contributed to his indecisiveness which led the heroines to end up fighting over him.
  • Oh, Crap!: Rekka and Harissa on seeing the Demon King for the first time.
  • One-Letter Name: R. And L. Not that L, though.
  • Ordinary High-School Student: Or Rekka would have been if not for his lineage.
  • Red String of Fate: Harissa gives Rekka a red string to allow him to return to her world anytime.
  • Science Destroys Magic: Rekka fells the Demon King in Harissa's world with a laser gun.
  • Screw the Rules, It's the Apocalypse!: Every world Rekka goes, he solves its problems via a means that totally does not follow its rules.
  • Set Right What Once Went Wrong: R's aim. Though it has been backfiring so far; in the future R came from, only 80% of the heroines participated in the war, with the other 20% sitting out. Not only is the other 20% also likely to enter the war now, the list of heroines has increased from R's future.
  • Summon Magic: Harissa is a magician specialising in this.
  • Talk to the Fist: Rekka doesn't let the Demon King's second form finish its speech, and proceeds to blast all its forms into smithereens until it dies for real.
  • Thanks for the Mammaries: Rekka gets quite a bit of the heroines' chests.
  • There Is No Kill Like Overkill: The Demon King falls to Rekka's laser gun... which has the destructive force of a cannon. Harissa even feels sorry for the Demon King when it dies.
  • This Is Your Premise on Drugs: Some people on the net said that this is exactly what kind of literature Zelretch will like to write.
  • Unwanted Harem: One that would cause a cosmic war by fighting over you? Definitely. And exaggerated to boot; the heroines he saved numbered in the hundreds.

Alternative Title(s): Ore Ga Heroine O Tasukesugite Sekai Ga Little Mokushiroku, I Saved Too Many Girls And Caused The Little Apocalypse


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