https://www.pixiv.net/users/78763657
https://www.pixiv.net/stacc/utugi_000
https://twitter.com/kou_sakuma0
https://twitter.com/psk_2k2k
https://twitter.com/intent/user?user_id=1496768340601503747
https://twitter.com/intent/user?user_id=1581577995269328897
https://bsky.app/profile/sakumakou.bsky.social
https://bsky.app/profile/did:plc:ryqqoyn2okkb667tswxlifi3
https://lit.link/sakumakou
The following tags are aliased to this tag: kou_sakuma0 and utugi_000 (learn more).
