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Oumasai, also known as saiouma, omasai or saioma, is a ship involving Kokichi Ouma, the Ultimate Supreme Leader, and Shuichi Saihara, the Ultimate Detective. These two are characters from the third killing game in the Danganronpa series, Danganronpa V3: Killing Harmony. They are not toxic, like most people make them out to be, and should not be portrayed as abusive or creepy. However, they do have an unusual relationship, as Kokichi is a very unusual person. This ship is supported by a lot of the fandom, although some people prefer to ship Shuichi with Kaede Akamatsu or Kiibo.
Someone: Saimatsu is such a good ship!
Me: It is, but I prefer Oumasai.
Someone: Oumasai is valid, but I don't really like Kokichi.
Me: *le gasp* why? He's best boy!
Someone: He's a rat :(
Me: Its okay, your opinions are valid, but Kokichi is my favourite.
Someone: That's fine :)
Oumasai by rowanjay78 November 24, 2019
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Oumasai is the ship name for the characters Kokichi Ouma and Shuichi Saihara from the visual novel New Dangan Ronpa v3: Killing Harmony (or 'everyone's new semester of killing' in the Japanese version). It ship so amazing and cute it makes me want to rip out my own eyeballs.

But sometimes people like to fuck it up and make it seem abusive and disgusting which is NOT OKAY.
Person 1: {Kiibouma} is DEFINITELY the best ship involving Ouma

Person 2: Are you kidding me?. Oumasai is where it is at
oumasai by Kokinky Ouma September 30, 2017
Related Words

oumasliffsitinjamouf 

I am going to slip it into your mouth.

Somthing you would say to a Motha Fucka.
Foo!! now dat you lied ta me oumasliffsitinjamouf!

Or
Oumasliffsitinjamouf Motha Fuckin Jive Turkey!!

oumasaep 

A very talented editor on Tik Tok. She is a very pretty woman on that app. She also likes to make random videos ( which i love ) A very caring person and has very good taste. Also she has short red hair and a hour glass waist
" whos a good editor oh right ! oumasaep!''
oumasaep by Gokublackseditor March 26, 2021
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