He flew to the International Space Station on Soyuz MS-20 in December 2021.

[2] Yozo Hirano joined ZOZO, Ltd. after graduating from Kyoto Prefectural University with a degree in casting director of a photography group.

There he is now working at Start today division of ZOZO, run by Maezawa, as a film producer.

[3] On May 13, 2021, Space Adventures announced that Yozo Hirano had passed the medical examination and from June 2021, together with Yusaku Maezawa, he began preparations for a space tourism trip on the Soyuz MS-20 flight, which launched on December 8, 2021.

Together with Maezawa and Hirano, Shun Ogiso, the Public Relations Manager of the Start Today corporation, also participated in the training, and served as the backup crew member for Hirano.