In 2013, Negi Haruba graduated from the manga department of Trident College of Design. He participated in the 89th Weekly Shōnen Magazine Newcomer Manga Award, organized by Kodansha, and won an award with the one-shot manga Coward Cross World (カワードクロスワールド?). The work was published in Magazine SPECIAL 2013 as his one-shot debut.
In 2014, he won a Gold Award in the Dengeki Comic Grand Prize of the 21st Dengeki Grand Prize organized by KADOKAWA and ASCII Media Works with the one-shot Back World Communication (裏世界コミュニケーション?).
In 2014, Negi Haruba drew Rengoku no Karma for the author Shun Hirose in Kodansha. The series ended in 5 volumes.
In 2015, he wrote the Oneshot Vampire Killer and publish it in Kodansha.
In February 2017, Negi wrote yet another Oneshot, 5Toubun no Hanayome in Kodansha. He receives positive feedback the fa and readers. The one-shot began its official serialization in August of the same year.
In August 2018, Negi's 5Toubun no Hanayome received an anime adaptation that is planned to air in January 2019.
- Rengoku no Karma (煉獄のカルマ Rengoku no Karma?; English "Karma of Purgatory"): Negi Haruba was involved in the illustration of Rengoku no Karma, a manga series authored by Shun Hirose (廣瀬 俊?). The series began serialization in Weekly Shōnen Magazine and ended at the fifth volume in 2015 (October 22, 2014 — August 20, 2015).
- 5Toubun no Hanayome (五等分の花嫁?) as creator and author. Published in Weekly Shōnen Magazine since 2017 and is ongoing (August 9, 2017 — ongoing)
- Coward Cross World (カワードクロスワールド?) in Magazine SPECIAL 2013 Issue 4.
- Back World Communication (裏世界コミュニケーション?) in Monthly Comic Dengeki Daioh in September, 2014.
- Vampire Killer (ヴァンパイアキラー?) in Weekly Shōnen Magazine 2016 Merger Issue 2 and 3.
- 5Toubun no Hanayome (五等分の花嫁?) in Weekly Shōnen Magazine 2017 Issue 8.
- Negi drew the ending card for episode 2 of the Boarding School Juliet anime series.
Illustrations and Sketches
- Twitter account @negi_haruba: https://twitter.com/negi_haruba
- Pixiv account: https://www.pixiv.net/member.php?id=152375
- Tinami account: http://www.tinami.com/creator/profile/13158
- Old twitter (deleted, the current @negi365 is a different account): http://twitter.com/negi365
- In the Dengeki Comic Grand Prize division of the 21st Dengeki Grand Prize, two people have won gold medals, and the other is Nio Nakatani (
仲谷 鳰Nakatani Nio?), who is known for the popular series Bloom Into You (やがて君になる Yagate Kimi ni Naru?).
- The kanji for Haruba (春場?) can translate to "spring field."
- Negi sometimes use certain topics to start and finish the volumes:
- The last page of Volume 1, 2, 3, and 4 (and indirectly 5 & 8) have Fuutarou and Itsuki in it.
- The first few pages of the first chapter in the Second Year Saga, Chapter 1, is about Fuutarou and his bride in their wedding ceremony. The last few pages of the last chapter in the saga, Chapter 68, is also about Fuutarou and his bride in their wedding ceremony.
- Volume 1: First chapter, a Nakano sister sees a half-naked Fuutarou. Last chapter, Fuutarou sees a half-naked Nakano sister.
- Volume 2: First chapter shows a photo of the current Fuutarou and one Nakano sister. Last chapter shows a photo of younger Fuutarou and a Nakano sister.
- Volume 3: First chapter, Yotsuba waves at Fuutarou. Last chapter, Yotsuba also waves at Fuutarou.
- Volume 4: First chapter is about the Nakano Quintuplets' finger game which involves all five fingers. Last chapter each of the Nakano Quintuplets holds one of Fuutarou's fingers.
- Volume 5: First chapter is about Rena in Fuutarou's imagination and the past. Last chapter is about Rena present in real life.
- Volume 6: The first chapter shows Rena's goodbye to Fuutarou and he falling into a body of water. The last chapter shows Fuutarou fell into a body of water and his goodbye to Rena.
- Volume 7: First chapter the Nakano sisters watch a love confession in a TV drama with Fuutarou. Last chapter a Nakano confesses to Fuutarou.
- Volume 8: First chapter Fuutarou is confronted face-to-face by a Nakano, and Miku tells Ichika that she won't lose. In the last chapter, Fuutarou is also confronted face-to-face by a Nakano, and it is Ichika who tells Miku that she won't lose to her.
- Volume 9: First chapter is about Nino's determination and Miku's horrible cooking. The last chapter is about Nino's determination and Miku's excellent cooking.