Obviously not for everyone who left, but there's always been rumors regarding trainees who left companies because the other trainees severely bullied them. Of course fans back then never believed those rumors but now that many thing are coming to light it's worth considering.
- Former ace Cube trainee for CLC - bullied out by CLC members before she could debut
- Yeonwoo - Posted a mysterious book passage on IG related to hate and a grudge. she previously said leaving Momoland was "not her choice"
- Hyunjoo - news came out she got harshly bullied by April members. her brother and medical records vouch for it but he agency is suing her because they will pay massive fees for Naeun's CF terminations
- Daisy - former Momoland member. her mother made some cryptic posts that seemed to blame certain members
- Hansol - the real reason he left NCT/SM was never known. fans speculated he "didn't want to be an idol anymore", yet he joined another idol group
- many SMNGG ace trainees - there were famous trainees who people were sure they'd debut with SM. in addition to this there were rumors of certain Aespa members bullying trainees out of SM
- Former ace Cube trainee for GIDLE - there was a trainee who appeared with MInnie, Shuhua and Yuqi on a CF. rumors was that she was supposed to debut with IDLE and she was going to be the visual, yet no single mention of her after that
- Alexander - former UKISS member who said his own company staff bullied him out of the group
- ChoA - its confirmed Mina was bullied in AOA but nothing specific was said about the reason ChoA left the group besides a generic excuse