Subaru's opening greeting, "Ajimaru!", is an accented/cute way of saying "Hajimaru," はじまる, meaning "it's starting!"
At the end of 2021, a comment calling Subaru an "Ajimaruya-san" left her confused (the comment was likely made due to the way she exclaims "Ajimaru!" in a similar to this adtruck). She began referring to herself as an Ajimaruya-san, or an ajimaru seller.
When asked by Okayu what an Ajimaruya shoots, Subaru replied "energy and courage."
In a 常MOS collab, Towa became a Konyappiya-san (Towa's opening greeting is "Konyappi!").