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Logo for Sunborn Network.

Sunborn[Note 1] (散爆) or Mica Team[Note 2] (云母组) is a Shanghai-based game developer directed by Yuzhong (羽中).

Mica Team was formed in 2008 as a doujin circle to produce and release the visual novel Girl of the Bakehouse, which was released in 2009. While working on more Bakehouse projects, the group also published doujin artbooks: a K-On!/Haruhi Suzumiya crossover, Touhou Modern Warfare, a book dedicated to Touhou's Suwako Moriya and the Guns&Girls series. The Bakehouse projects eventually led to a partnership with studio GameMaster to develop the strategy game Codename: Bakery Girl, released in 2013.[1]

In 2015, Mica Team took the official company name Sunborn and announced their mobile game Girls' Frontline. After three beta tests and development troubles, Sunborn launched the game in Mainland China in 2016, in Taiwan, Hong Kong and South Korea in 2017, and in a global English version and in Japan in 2018. The commercial success of Girls' Frontline enabled Sunborn to announce a remake of Codename: Bakery Girl in 2019 titled Reverse Collapse: Code Name Bakery, and three Girls' Frontline-related games in 2020: Girls' Frontline 2: Exilium, Project Neural Cloud and Girls' Frontline: Glitch Land.[2]

On 21 April 2021, Tencent gained a 20% stake in Sunborn. According to Yuzhong, the deal involved a 9-figures investment from Tencent and Sunborn would still publish its own games in Mainland China. At the time the studio had more than 450 employees, with about 200 working on Girls' Frontline 2.[3]

The Mica Team logo from Codename: Bakery Girl.


  1. Sunborn is registered on Steam as “Sunborn Games Technology Co., Ltd.” In Girls' Frontline, it is registered as “SUNBORN Network Technology Co., Ltd.”
  2. Various official renditions have been used for the name “Mica Team”: