This article explores the cultural perceptions and historical context of having a mustache in Japan. While facial hair was once a symbol of masculinity and status, it is now often associated with delinquents or rebels, and strict dress codes in professional settings prohibit it. However, facial hair is becoming more accepted as a fashion statement among young Japanese men, and some religions encourage it as a sign of piety. Ultimately, whether or not to have a mustache in Japan depends on personal preferences and lifestyle choices.