Groups
- yellowback 1
- yellowcake 4
- yellowcotton 11
- yellowcrane 2
- yellowpost 6
- yellowseed 24
- yes sir. 16
- yes sir. 6
- yggdrasil 25
- yiffcorp 2
- yinghua 37
- ykks hamburg 2
- ykmc matsuri 2
- ykn 1
- ylang-ylang 29
- ymc 15
- ymg3 4
- ymi factory 12
- yo dou 8
- yo wa okazu wo shomou shiteoru 35
- yo-kan 1
- yo-metdo 94
- yoake andon 16
- yoakeno beat 3
- yoban left 18
- yobieki seisakusho 11
- yochiyochi sairiumu 1
- yodaka choushinsei 13
- yodakapan 29
- yodare bunmei 2
- yofukashi etc. 1
- yofukashi etc. 1
- yofukashi no heya 21
- yofukashi teku 1
- yogachika 19
- yogentei 1
- yogul-honpo 2
- yoguriina 2
- yogurp creations 8
- yogurt 39
- yogurt prince 12
- yohanemu 8
- yohitama 9
- yohsyuan 78
- yoidore rodeo 2
- yoidore usagitei 4
- yoidukiya 1
- yoikazebet 3
- yoiko books 29
- yoikojigoku 1