noun
fellow fan of the same idol/character
Slang used in idol and character fandoms to refer to someone who supports the same member or character as oneself. Often used in phrases like 同担拒否 (rejecting fellow fans of the same member).
SNSで同担を見つけて嬉しくなった。
I was happy to find a fellow fan of the same member on social media.
同担拒否の人もいるから気をつけて。
Be careful because some people reject fellow fans of the same member.