Biography and works
Hoshino was born on April 21, 1980, in
Shiga Prefecture, Japan, as the younger of
fraternal twin girls and the second of three children.
 As a child, she originally dreamed of becoming an astronaut.
 Hoshino confessed she was not too interested in school, often making excuses to avoid taking classes.
 Additionally, she added that would often practise drawing in the middle of the classes which gave her doubts when she had to erase them. She drew her first manga at twenty-one.
 In 1998, Hoshino moved to
Tokyo. She dreamed of bringing her mother to the city and was able to in 2006.
 After graduating from high school, Hoshino did not know what career should she follow as she was offered the work of joining video game companies. Ultimately, she decided to become a manga author despite her fears of the difficulty it takes.
Hoshino's first publication Zone, a
one-shot title, appeared in
Akamaru Jump in December 2002 and was followed by her first series Continue (コンティニュー Kontinyū), which was published in
Weekly Shōnen Jump in July 2003.
 Due to lack of popularity of Continue, the Shueisha staff recommended Hoshino to make a series based on Zone.
 As a result, the one-shot Zone was succeeded by the D.Gray-man (ディーグレイマン Dī Gureiman) series, which began publication in Weekly Shōnen Jump in May 2004 and contains multiple themes from Zone.
 The series is over
two hundred chapters long in Japan and is sold in over ten countries, including the United States, France, and Germany.
anime adaptation, directed by Nabeshima Osamu and produced by
Dentsu, was aired from October 2006 to September 2008.
Funimation licensed an English-language version, the first thirteen episodes of which were released on DVD in March 2009.
 Based on Hoshino's work, Kaya Kizaki has written three novels, commonly named D.Gray-man Reverse, and
Konami has developed two video games and a trading card game.
 The fanbook D.Gray-man Official Fanbook: Gray Ark and the art book TV Animation D.Gray-man Official Visual Collection: Clown Art were released in June 2008 and September 2008 respectively.
 This was followed by an illustration book titled D.Gray-man Illustrations Noche in February 2010 and another character book titled "D.Gray-man Character Workbook CharaGray!" in July 2011.
The series was well received in Japan. D.Gray-man was Weekly Shōnen Jump's ninth bestselling manga in Japan in 2007 and 2008.
 The fifteenth volume ranked twenty-second in 2008 manga sales in Japan while the fourteenth and sixteenth volumes placed at twenty-seventh and thirtieth respectively.
 The manga received the prize for Best Manga Series 2006 at the Anime and Manga 2007 French Grand Prix organized by Animeland and received Webotaku's prize for Manga of the Year 2006.
 In 2006, the second novel was the third bestselling novel in Japan.
In Japan, D.Gray-man has been put on hiatus many times; once due to Hoshino falling seriously ill with
Norovirus and another because of an injury to her neck. However the series continued shortly after in both cases.
 In November 2008, Weekly Shōnen Jump announced that Hoshino was again putting the series on hold due to an injured wrist.
 Publication resumed in March 2009.
 The series once again went on hiatus on May 11.
 The series resumed in the seasonal magazine
Akamaru Jump on August 17, 2009. Following the release in Akamaru Jump, D.Gray-Man resumed its serialization on November 4, 2009 in the monthly-release Japanese manga magazine,
 Additionally, Hoshino was one of the multiple manga authors that celebrated the 10th anniversary of the manga series
Naruto by drawing her own rendition of the main character,
In 2013, she was the original character designer for
Valvrave the Liberator by
Sunrise, making it her first original work on an anime as well as her first new work since D.Gray-man.
 Additionally, D.Gray-man resumed serialization in July 17, 2015 in Shueisha's quarterly magazine, Jump Square Crown.