What is Bakunyu? [Definition, Meaning]

Prison-School-wallpaper-What-is-Bakunyu-503x500 What is Bakunyu? [Definition, Meaning]

Boing! Boing! Boing!* What could that refer to? A pet in an anime? A skirt playfully bouncing in the wind as a girl walks by? How about a pair of boobs that is so large, they look like they are going to burst? Welcome to Bakunyu!

Bakunyu is a term that has existed for a while now, but hasn’t been thrown around a lot until recently. Bakunyuu is actually a Japanese word created by slamming two different Kanji together to get a new meaning. The first part, Baku, 爆, means literally an explosion of some sort; whether vocal or other. It is usually paired with works like explosion, or bomb, or voracious laughter, so you get the idea. Nyu, 乳, refers to milk as it is commonly found in words like milk, baby, or infant. So explosive milk… hmm… It can only mean one thing – giant, exploding breasts! (Yay!)

Bakunyu is defined as women who are depicted having breasts so large they look as if they are about to explode. They can be defined as breasts that are between G75 and M70. (I did not even know that boobs could get that big…) Anime will always have one character or another that has an unrealistic set of breasts. Some, thankfully, are much more generous and give us multiple characters that are well equipped. Most of the time, these characters appear in Hentai and while that is all nice and fun, this article will focus on characters that exist in anime to sort of give us a tantalizing tease. They are big. We know they are big, but let’s enjoy the tease without this becoming adult too fast.

Queen’s Blade

Prison-School-wallpaper-What-is-Bakunyu-503x500 What is Bakunyu? [Definition, Meaning]
  • Episodes : 12
  • Genres : Action, Adventure, Ecchi, Supernatural
  • Airing Date : April 2009 – June 2009

Queen’s Blade follows Leina as she sets out on a Journey to Join the Queens Blade tournament. What is it? It’s a competition held every few years to determine who the next queen will be. The Queens Blade tournament is held and it not only concerns itself with strength, but with body as well… So Leina sets out along the way meeting Listy, Tomoe and a few other heroes while attracting the unwanted attention of the likes of the swamp witch with served by Melona, Airi, and Menace.

This show has plenty of Bakunyu but the two best examples of it have to be with Melpha the High Priestess and Cattleya the weaponsmith. Cattelya is a bit more reserved but she has um… quite the endowment and it’s very easily to be seen. While she doesn’t show up a whole lot in the beginning, she makes plenty of appearances. That being said, the real winner here is Melpha. She’s practically bursting out of her holy garments at almost all times. Melpha is a high priestess who is obsessed with Nanael, because she thinks that Nanael is a messenger from God.

While initially weak in most combat, some lewd poses combined with her breasts flailing everywhere, Melpha can actually become quite strong. This is a great show to watch all around with great recommendations. Chances are, if you’re into Bakunyu and oversized boobs, then this is the show for you as almost everyone has a large chest. It’s just that some are larger than others!

Prison School

Prison-School-wallpaper-What-is-Bakunyu-503x500 What is Bakunyu? [Definition, Meaning]
  • Episodes : 12
  • Genres : School life, Slice of life, Comedy, Ecchi
  • Airing Date : July 2015 – September 2015

Prison School is about five boys that enter into high school. I know you’re saying “so what” so I’ll keep it moving. There’s a twist. These are the first five boys to ever be accepted to this school in its history because it’s an all girls school. On the very first day, the five boys are caught trying to peep on the girls as the take a bath. They are arrested by the student council and confined to a prison cell located in the middle of the school grounds where all of the girls can see them. Welcome to prison school.

Prison school may be a lot of things, but it’s definitely got plenty of ecchi as well. The most notable being the student council vice president, Shiraki Meiko. From day one, Meiko’s uniform is barely holding back her bakunyu. In fact, there are many times that the uniform looks as if it is about to burst or explode and show us what Meiko is barely hiding underneath. Meiko does exercises in her underwear once or twice leaving nothing to the imagination as well as the time where she wears the blck body suit! The best part about Prison School is that Meiko is actually a prominent character so she does show up a lot!

Valkyrie Drive ~Mermaid~

Prison-School-wallpaper-What-is-Bakunyu-503x500 What is Bakunyu? [Definition, Meaning]
  • Episodes : 12
  • Genres : Action, Magical girl, Yuri
  • Airing Date : October 2015 – December 2015 (planned)

Valkyrie Drive ~Mermaid~ is actually a brand new show for the Fall 2015 lineup, but it works perfect for this introduction to bakunyu. Valkyrie Drive follows Mamori Tokonome who was abducted and sent to Mermaid island. Once there, she is attacked almost instantly but then saved by Mirei Shikishima who does… some things… to Mamori letting her transform into a weapon for them to fight back! Then they are brought in and it is explained that both are on this island because they are affected by the A Virus which allows them to transform as a pair and fight. The Exters (Mamori) can turn into weapons when they are turned on by Liberators (Mirei) through a process called driving. They are then able to fight! Hence the fight to survive against the cruel alienation by society begins.

First things first, this is a yuri anime. It’s very obvious from the first few minutes. That being said, the Bakunyu here belong to Mirei! She has a huge chest and she has no problem exposing it even in the first episode to drive Mamori to turn into a weapon! Kind and soft spoken, Mirei fights to keep Mamori safe while at the same time forming a bond with her. This often involves her rubbing her boobs against Mamori’s (Yes!) ((shot)). Not to mention too, many of the women in this society seem to be well equipped. As more episodes air, I’m sure we will get more good characters too with bakunyu! Check it out for some good laughs and great examples of Bakunyu!


Here we are at the end again. Just for a quick recap, bakunyu means “explosive breasts” and this refers to anything that is an overtly large bust. The character has to look as if they are about to burst out of their clothes. Or in the case of Mirei in Valkyrie Drive, the character could just constantly wear a shirt unbuttoned! We hope you enjoyed this intro into what bakunyu is! If you have questions, comments, or concerns, fire away in the comments and we can talk it up.

Till next time!

Prison-School-wallpaper-What-is-Bakunyu-503x500 What is Bakunyu? [Definition, Meaning]
Prison-School-wallpaper-What-is-Bakunyu-503x500 What is Bakunyu? [Definition, Meaning]


Author: Nagareboshi

American by birth; international by choice. I am trying to bring attention to one of my favorite causes; me. I translate by day and write by night. Aspiring polyglot. My dream would be to be the personal translator for Amuro Namie. Other than that, my hobbies include languages, weightlifting, sleeping, karaoke, GOOD coffee and music. When I’m not doing any of the above, I am most likely laughing hysterically at Willam Belli videos or EV farming. I ain’t gunna Rupologize for it neither. Waifu are Shirai Kuroko & Euaerin.

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