Daiki Arioka and Mayu Matsuoka on Their Marriage with 7 Years of Secret Dating and Unspoken Rules

“Although I have many shortcomings, I will strive to grow and show you how I have matured through our partnership. I hope we can respect what is important to each other and face our future together with sincerity.”

The person who announced the marriage through the agency as mentioned above is Daiki Arioka (33) from ‘Hey! Say! JUMP.’ His marriage partner is actress Mayu Matsuoka (29), with whom he has been reportedly dating since 2017. After 7 years of dating, they have finally taken the next step forward.

“Their relationship began through the introduction of a mutual acquaintance. Since then, they have been renting separate rooms in the same apartment building and have continued their under one roof relationship, frequently visiting each other. Matsuoka is known for her love of sake, and they often enjoy drinking together on their days off,” said an entertainment agency insider.

As a big couple consisting of a popular actress and a top idol, the two maintained their relationship under super strict measures. Our magazine also reported on their secret relationship in the December 28, 2018 issue. At that time, Matsuoka had solidified her reputation as an actress, winning the Best Supporting Actress Award at the Japan Academy Awards for the movie ‘Shoplifters,’ while Arioka was a top idol. Due to their status, they had an unspoken rule of “no dates outside.” Although they were frequently seen entering and leaving the same apartment building, they were never seen going out together.

“In 2023, it was reported that Matsuoka had moved, leading to some speculation about a possible breakup. However, in reality, Arioka continued to visit Matsuoka’s new home frequently, and they maintained their relationship. Recently, Arioka’s growth as an actor has been remarkable, winning the Japan Academy Award for Best New Actor for his role in the movie ‘Shin Ultraman.’ There’s no doubt that Matsuoka, who continues to thrive as an actress, had a significant influence on his development,” the same insider said.

Supporting each other both publicly and privately, the couple has finally tied the knot. But why did they choose to announce their marriage at this particular time? An entertainment production insider believes it is related to the series of scandals involving the former Johnny’s office.

“With the sexual abuse allegations against the late Johnny Kitagawa, the former Johnny’s office has restructured and made a fresh start as STARTO ENTERTAINMENT. In the past, it was rare for talents to announce their marriage while still active in their groups, but with the changes in the organization, this has become more common recently. This year alone, Tsuyoshi Domoto (45) from ‘KinKi Kids,’ Keiichiro Koyama (40) and Shigeaki Kato (36) from ‘NEWS,’ and Yuichi Nakamaru (40) from ‘KAT-TUN’ have all announced their marriages. The agency has clearly shifted to prioritize the decisions of their talents, and in this context, Arioka likely decided to announce his marriage as well.”

Having navigated significant changes, the couple has finally tied the knot. Wishing them long-lasting happiness!