There is no clear information regarding tattoos from the rules or the official website. User reports are also absent, making it difficult to determine their policy.
There are no explicit statements on the official website regarding tattoos, and there are no user reports. Therefore, it is unclear whether tattoos are allowed.
There are user reports, but no specific information is available. Therefore, there is insufficient data to make a definitive judgment.
Tattoo-friendly per 独自調査.