Reading of 別櫓 is unknown, "Betsuru" is a guess.
https://twitter.com/roydo0020
https://twitter.com/intent/user?user_id=1139476780245405696
https://nijie.info/members.php?id=1352017
https://sketch.pixiv.net/@user_pejw7424
https://www.pixiv.net/users/35574816
https://www.pixiv.net/users/41371726
https://www.pixiv.net/users/41629143
https://www.pixiv.net/stacc/user_pejw7424
https://www.pixiv.net/stacc/user_rxtc2428
https://twitter.com/ahondaraaho
https://twitter.com/intent/user?user_id=1187982388535513088
https://sketch.pixiv.net/@user_rxtc2428
