mysterious sales manager USAN/ICHIBACHI who is connected to fps team FNATIC
his profile "ピンク髪" means Pink hair(Now removed)
https://i.imgur.com/Es6H4Zq.jpg
https://i.imgur.com/76zG23t.png
https://i.imgur.com/klJUQk2.png

Tokyo Tourism Ambassador's note confirms the existence of "U-san". Is the project producer.
https://note.cover-corp.com/n/nd5bda641e7df
Heaps praise on Miko specifically.

Horizontal
https://i.imgur.com/sPxYbSI.jpg
https://i.imgur.com/iayBtrl.jpg

Pink hair in attendance at YAGOO's first pitch ceremony.
https://youtu.be/Ek_hJRXYqE0&t=83

(been to Kyoto with Miko ? https://i.imgur.com/E1au8zd.jpg

From STEAM, "USAN=Yuki Matsumoto" ?
https://steamid.uk/profile/76561198063423223
https://i.imgur.com/ber1Wpg.jpg
https://i.imgur.com/K3LCu6j.jpg

"Yuuki Matsumoto" confirmed in Sakura Kakumei project
https://game-i.daa.jp/?EF%BD%9E%E8%8F%AF%E5%92%B2%E3%81%8F%E4%B9%99%E5%A5%B3%E3%81%9F%E3%81%A1%EF%BD%9E#h7542dc4

In short, Usan and Sakura Miko are dating. Usan is a Cover manager. Very unethical and all around disgusting behaviour.