01A - Mina Ashido
02A - Tsuyu Asui
03A - Ochaco Uraraka
04A - Kyoka Jiro
05A - Toru Hagakure
06A - Momo Yaoyarozu
01B - Itsuka Kendo
02B - Yui Kodai
03B - Kinoko Komori
04B - Ibara Shiozaki
05B - Pony Tsunotori
06B - Setsuna Tokage
07B - Reiko Yanagi
01 - Himiko Toga
02 - Mei Hatsume
03 - Nerumi Kayama (Midnight)
04 - Anan Kurose (Thirteen)
05 - Fuyumi Todoroki
06 - Melissa Shield
07 - Shino Sosaki (Mandalay)
08 - Ryuko Tsuchikawa (Pixiebob)
09 - Tomoko Shiretoko (Ragdoll)
10 - Yu Takeyama (Mt Lady)
11 - Emi Fukukado (Ms Joke)
12 - Camie Utsushimi
13 - Kaoruko Awata (Bubble Girl)
14 - Neijire Hado
15 - Eri
16 - Ryuko Tatsuma (Ryukyu)
17 - Rumi Usagiyama (Muruko)
18 - Moe Kamiji (Burnin)
19 - Chitose Kizuki (Curious)
20 - Nana Shimura
21 - Kaina Tsutsumi (Lady Nagat)
22 - Ippan Josei (ordinary woman)
23 - Cathleen Bate
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Potential Users I decided against
Tatami Nakagame (turtle girl)
Saiko Intelli
Manami Aiba (La Brava)
Habuko Mongoose
Kashiko Sekaigai (Habuko's classmate)
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Terminology
IVT = inner voice transmission
Heroine Guild or guild = entirety of system and registered users
System = functions and operations of guild
Guild members = general term for those registered to the guild
Registered user = to refer to specific members