Taichi Shiozaki of M!LK reported to be dating actress Rina Koyama

Taichi Shiozaki, a member of the popular five-member dance and vocal group M!LK, has been reported to be in a relationship with actress Rina Koyama. The report, published by Bunshun Online on August 16, included photographs of Koyama visiting Shiozaki’s apartment.

Koyama, a former member of the idol group Magical Punchline and an actress set to play the lead in the 2026 Sailor Moon stage production, has faced social media speculation regarding ‘hints’ of the relationship. Fans have pointed to similar fashion items and ‘lover-perspective’ photos on her Instagram as potential evidence of their connection.

This marks the first dating scandal for a member of M!LK, a group that has seen significant recent success following the viral popularity of their song ‘Ii jan’. Shiozaki’s agency, Stardust Promotion, is known for respecting the individuality of its talent, leading to speculation regarding how the group will manage the news.