DNA²

DNA² (D・N・A² ～何処かで失くしたあいつのアイツ～) is a Japanese manga series written and illustrated by Masakazu Katsura. It was serialized in Shueisha's manga magazine Weekly Shōnen Jump from August 1993 to July 1994, with its chapters collected in five  volumes.

A 12- episode anime television series adaptation, produced by Madhouse and Studio Deen, was broadcast on Nippon TV from October to December 1994. A three-episode original video animation (OVA) was released from February to June 1995. In North America, the TV series and the OVA were licensed by Central Park Media and released on DVD in 2003. Discotek Media re-licensed the series and released on DVD in 2014.

Plot
Junta Momonari is a high school student with a very unusual problem. Whenever he becomes sexually aroused by a woman, his "female allergy" kicks in, causing him to throw up. One day, Junta is confronted by a girl in strange clothing who claims to be from the future. The girl, called Karin Aoi, tells him about how the world has become terribly overpopulated in her time, to the point where having more than one child is a crime punishable by death. At the root of the problem is a family of "Mega-Playboys": people with sexual charisma and impulses that lead each of them to have 100 children that carry the Mega-Playboy DNA, causing them and all their descendants to each have 100 children as well. All this started with a single Mega-Playboy, whom Karin has travelled back into the past to deal with. Karin reveals to Junta that she is a "DNA Operator". Her job is to make alterations in people's DNA that will change their nature for the greater good of society. She intends to shoot the original Mega-Playboy with a DCM ("DNA Control Medicine") bullet that will alter his DNA in order to relieve him of his mega-playboy qualities, thus preventing the overpopulation problem from ever happening. She can then return to the future to receive the reward that will allow her to finally get the "nice husband, cute pet, and sweet, sweet home" she yearns for. She confirms Junta's identity, then, to his shock, promptly shoots him.

Junta, the boy who could not look at a naked woman without throwing up, was destined to become the original Mega-Playboy later in his life. Escaping back to her time machine, Karin arrives to a message from her boss in the future. Her hopes for a commendation on a job well done are dashed when her rather upset employer points out that the DCM bullet she was supposed to use on the Mega-Playboy was left behind in the future. By shooting Junta with the wrong DCM bullet—one which Karin planned on using to create an ideal husband—rather than eliminating the Mega-Playboy, Karin actually created him. Now unable to return to the future until she sets things right, Karin decides to improvise by making Junta get together with the only girl who does not give him an allergic reaction: his childhood friend Ami Kurimoto, for whom he does not feel any romantic affection, since he sees her more as a sister.

Characters

 * Junta Momonari (桃生 純太)
 * A high school boy with a peculiar allergy to girls: he vomits when sexually aroused. He gains the ability to transform into the Mega-Playboy, practically at will, after being shot by Karin's first DCM bullet. However, each time he transforms, his Mega-Playboy DNA stabilizes more and more.
 * A high school boy with a peculiar allergy to girls: he vomits when sexually aroused. He gains the ability to transform into the Mega-Playboy, practically at will, after being shot by Karin's first DCM bullet. However, each time he transforms, his Mega-Playboy DNA stabilizes more and more.


 * Karin Aoi (葵 かりん)
 * A sixteen-year-old DNA Operator from the overcrowded future, sent back in time in order to prevent the advent of the Mega-Playboy using DCM, however she brings back the wrong bullet from the future which accelerates Junta in becoming the Mega-Playboy. All she wants out of life is a nice husband, a cute pet, and a sweet home, but when she met Junta, she falls in love with him–at first because of his Mega-Playboy powers, and finally because of him as a person.
 * A sixteen-year-old DNA Operator from the overcrowded future, sent back in time in order to prevent the advent of the Mega-Playboy using DCM, however she brings back the wrong bullet from the future which accelerates Junta in becoming the Mega-Playboy. All she wants out of life is a nice husband, a cute pet, and a sweet home, but when she met Junta, she falls in love with him–at first because of his Mega-Playboy powers, and finally because of him as a person.


 * Ami Kurimoto (栗本 亜美)
 * Junta's childhood friend and schoolmate, and, except for two instances, the only girl who doesn't bring about an allergic reaction in him. She is also the only girl immune to the Mega-Playboy's ability to seduce women, something Karin considers a key part in the plan to stop the Mega-Playboy. If Junta and Ami stay together, she can nullify the Mega-Playboy's charms and the future won't be overcrowded.
 * Junta's childhood friend and schoolmate, and, except for two instances, the only girl who doesn't bring about an allergic reaction in him. She is also the only girl immune to the Mega-Playboy's ability to seduce women, something Karin considers a key part in the plan to stop the Mega-Playboy. If Junta and Ami stay together, she can nullify the Mega-Playboy's charms and the future won't be overcrowded.


 * Tomoko Saeki (佐伯 倫子)
 * One of the most popular and beautiful girls in Junta's school, and the ex-girlfriend of Ryuji. She falls in love with Junta because of his Mega-Playboy powers. Apart from this, she's a quite lonely girl; her mother died and her father works abroad.
 * One of the most popular and beautiful girls in Junta's school, and the ex-girlfriend of Ryuji. She falls in love with Junta because of his Mega-Playboy powers. Apart from this, she's a quite lonely girl; her mother died and her father works abroad.


 * Ryuji Sugashita (菅下 竜二)
 * Tomoko's wealthy and possessive ex-boyfriend. Swears vengeance against Junta. Later gains powers that rival those of the Mega-Playboy after being accidentally shot by a second DCM bullet.
 * Tomoko's wealthy and possessive ex-boyfriend. Swears vengeance against Junta. Later gains powers that rival those of the Mega-Playboy after being accidentally shot by a second DCM bullet.


 * Kotomi Takanashi (高梨 ことみ)
 * A friend and classmate of Ami's who has an embarrassing problem similar to Junta's allergy: she farts whenever she gets nervous. Kotomi develops a crush on Junta due to his Mega-Playboy DNA. She and Junta spend some time together trying to help cure each other of their problems. She's very talented in gymnastics.
 * A friend and classmate of Ami's who has an embarrassing problem similar to Junta's allergy: she farts whenever she gets nervous. Kotomi develops a crush on Junta due to his Mega-Playboy DNA. She and Junta spend some time together trying to help cure each other of their problems. She's very talented in gymnastics.


 * Yokomori (横森)
 * Karin's boss from the future.
 * Karin's boss from the future.


 * Oharu (おはる)
 * The AI of Karin's time traveling ship.
 * The AI of Karin's time traveling ship.


 * Lulara Kawasaki (川崎 るらら)
 * The Mega-Playboy's youngest daughter and Junta's 101st child. In the anime, she is Junta's great-granddaughter.
 * The Mega-Playboy's youngest daughter and Junta's 101st child. In the anime, she is Junta's great-granddaughter.


 * Mori (森)
 * A government official from the future who wishes to use the Mega-Playboy and his descendants for his own purposes.
 * A government official from the future who wishes to use the Mega-Playboy and his descendants for his own purposes.


 * Kakimaro Someya (染屋 垣麿)
 * A friend of Junta who often pokes fun at Junta's bad luck with girls.
 * A friend of Junta who often pokes fun at Junta's bad luck with girls.


 * Ichigo Ichikawa (市川 一期)
 * Another one of Junta's friends.
 * Another one of Junta's friends.


 * Chiyo Momonari (桃生 チヨ)
 * Junta's mother, she has raised him alone after being widowed. A kind woman, if somewhat of a meddler and tattletale sometimes.
 * Junta's mother, she has raised him alone after being widowed. A kind woman, if somewhat of a meddler and tattletale sometimes.


 * Mako Iwasaki (岩崎 魔子)
 * Competitor with Kotomi in gymnastics, tried to remove her competition with the help of her brother, a psychic interested in Junta's psychic soldier abilities.

Manga
Written and illustrated by Masakazu Katsura, DNA² was serialized in Shueisha's manga magazine Weekly Shōnen Jump from August 23, 1993, to July 4, 1994. Shueisha collected its 42 chapters in five volumes, released from December 2, 1993, to February 3, 1995.

Anime
A 12-episode anime television series adaptation, produced by Madhouse and Studio Deen, and directed by Jun'ichi Sakata, was broadcast on Nippon TV from October 7 to December 23, 1994. L'Arc-en-Ciel performed the opening theme "Blurry Eyes", while Sharam Q performed the ending theme "Single Bed" (シングルベッド). Three original video animation (OVA) episodes were released from February 21 to June 25, 1995. The entire series was re-released on DVD and Blu-ray Disc sets on January 29, 2014.

In North America, the series was first licensed by Central Park Media. They released the 12 episodes and the three OVA episodes on five DVDs from February 11 to October 14, 2003. Following CPM's bankruptcy in April 2009, the series was acquired by Discotek Media in 2013, and released on a single DVD set on June 24, 2014. The series has been streamed by Viewster and Crunchyroll.

In Southeast Asia, the series was broadcast on Animax Asia.