Kosaku Koizumi Details Galleries Cast On MovieCast On TV Name Kosaku Koizumi Also Known As 小泉光咲, こいずみ こうさく, Koizumi Kosaku Birthday 2003-03-11 Gender Male Place of Birth Original Size (300x450) As: Unknown2021-04-13My Dear Exes... As: Shiina Takayuki2023-10-06Boys with Secrets... As: Unknown2023-08-30Numa Otoko to Numaoc... As: Yakumo Yuuta2023-08-30Numa Otoko to Numaoc... As: Tamaru Hajime2024-07-05Billion x School...