|Igarashi Tatsuya五十嵐 達也|
|Body||Pale, Slim, Young-adult|
|Personality||Friendly, Hardworker, Kind, Mature, Smart|
|Role||Childhood Friend, Friend, Mechanic|
|Visual novels||Side character - Kono Oozora ni, Tsubasa o Hirogete|
Side character - Kono Oozora ni, Tsubasa o Hirogete Flight Diary
An adult in the same age of Amane and Hibari. He is a kind man and like an older brother to the main cast, is working in his family's factory and he helps to gather materials for the glider.