As the group’s sole Japanese member, Masami (born Akiba Masami in Osaka, 2005) provides a vital cultural and linguistic link to the group’s massive international fanbase. Standing at an impressive 184 cm, he is often the first to catch the eye of global fans. However, it is his “ISFP” personality—quiet and observant but incredibly talkative once comfortable—that has endeared him to the Min(ut)e. A particularly funny data point shared by the members during a 2024 vlog is that Masami is officially the “King of Losing Things.” He reportedly went through three pairs of wireless earphones in their first six months of touring, eventually prompting him to switch back to wired earphones to save himself from further heartbreak.

Masami’s bilingualism is a strategic asset for EDEN Entertainment. During their 2025 “ALL the HOURS” fancon tour in Europe and Latin America, Masami often took the lead in translating complex emotions for the audience. Despite his “cool” rapper persona, he has some hilarious personal contradictions. For instance, while he is terrified of cockroaches, he claims to be a master at catching cicadas with his bare hands. He also has a very specific “indoor-outdoor” relationship with the weather: he detests being outside in the rain, but finds it the most “cozy and healing” experience when he is safely tucked away in the dorms with his three puppies.

For the global Min(ut)e, Masami is the ultimate style icon. He has famously stated that he “only wears black colored clothes,” a preference that has heavily influenced the darker, industrial aesthetic of the group. Fans looking to replicate this monochromatic look often frequent the ALL(H)ours Merch Store to find the exact oversized hoodies and cargo pants Masami favors. As the group moves toward 2026, Masami’s role as the international face of the band is set to grow even further, especially as they look to break into more non-Korean speaking markets. He is the member most likely to be seen interacting with fans on social media, often using a mix of Japanese, Korean, and English to ensure no fan feels left out of the conversation.