View source for Atsushi Miyano

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| name                = Atsushi Miyano
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| age                 = ?
| gender              = Male
| date-of-birth       = 
| relatives           = Daughters [[Akemi Miyano]], [[Shiho Miyano]], Unnamed father
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| appearances         = 
| cases-solved        = 
| japanese-voice      = 
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Atsushi Miyano was a biochemist in the [[Black Organization]] and apparently [[Shiho Miyano]] and [[Akemi Miyano's]] father.(424) [[Atushi Miyano]] and Elena Miyano started the [[APTX 4869]] research according to [[Vermouth]].<ref>“If you [Shiho] want to blame someone, blame your parents who took over this foolish research.” According to the anime translation (345)</ref> One or both of them worked on the project before [[Shiho Miyano]] took over. Both of Elena and Atsushi died for some reason which [[Pisco]] called an accident while Shiho was young. 

Atsushi was a “mad scientist” who was unpopular in the scientific community because his work and theories were not mainstream. Agasa was a distant acquaintance of Atsushi. Atsushi Miyano’s appearance is unknown.

Atsushi Miyano moved out of his father's house (423-425) thirty years ago to go somewhere for his research. He got married in this time period to Elena and then visited his father's house then occupied by his childhood friend and playmate Souhei Degima later with Elena when Akemi was 4-5 years old. The visit most likely occurred about 20 years prior to the current timeline.