User blog comment:B214/Volume 23 discussion blog/@comment-172.56.16.164-20170415212008/@comment-120.188.65.0-20170416200357

@Tengen I think it's banned for RG since it will reveal the enemy's plan if they have a woman in their team. The reason why he was able to use it in Vol 10 was because Sairaorg allowed it. So unless Sona allows it too, which is pretty unlikely, The bilingual cannot be used