The Transformation and Life Updates of Koharu Kusumi Following Her Date with a High-Level Foreign Banker

Koharu Kusumi (33), who joined Morning Musume as the youngest member and rose to become the absolute ace, had secretly found adult love. Her partner is an elite businessman working at a top foreign company. This is a look back at the details based on an article published on April 23, 2025.

Former Morning Musume Ace Blossoms Into an Adult Woman

The girl who made Tsunku♂ (57) marvel has, over time, found adult love.

In early April 2025, just past 9 p.m. on a weekend night, a stunning beauty was enjoying a meal with a man at a high-end ethnic restaurant in Tokyo with an average check of over 10,000 yen, drawing the eyes of everyone around. About an hour after entering, the beauty finished her meal, stepped out in a beige voluminous coat stylishly layered over a black dress, and began walking closely with the man beside her. Her fair skin and outstanding figure stood out—this was Koharu Kusumi, former Morning Musume member and now an actress.

“Kusumi joined Morning Musume in 2005 at age 12, the youngest member at the time, while she was in sixth grade. The following year, she debuted as a solo artist. Tsunku♂, the general producer, praised her as a miracle-level girl! and she became a popular ace of the group. However, she announced her graduation from the group in 2009, and in November 2016, she also left her agency. Since then, she has worked independently, appearing in boat race broadcasts and radio programs in her hometown of Niigata Prefecture, steadily continuing her career,” said a TV station insider.

Her turning point came in April 2017.

“She transferred to Oscar Promotion, the agency that manages actresses such as Aya Ueto (40) and Emi Takei (32). Over time, she steadily built her career, and in 2024, she was selected for her first lead role in a commercial TV drama on a private network with ‘Uri wo Yaburu ~Beyond the Line~’ (TBS). She also appeared in ‘Jofu ~Is ×××× Necessary for Women?~’ (TV Tokyo) in the April 2025 term. Her acting career seems to be going smoothly,” the same source added.

After finishing dinner, the two walked out to the main street to catch a taxi, but it was slow to arrive and light rain began to fall. The man guided Kusumi to the eaves of a nearby building to wait out the rain, and when they finally caught a taxi, she quickly got in. They later arrived at the drop-off of a luxury high-rise in Tokyo and entered the building side by side.

Who exactly is this man?

“He works at a top foreign company, the same firm where actress Satomi Ishihara’s husband is employed. Even young employees there reportedly earn tens of millions of yen annually, and he himself lives in a luxury tower apartment—a true elite in finance. The two met at a drinking party in 2024, hit it off, and began dating. While they are busy during the week and can’t meet then, they nurture their love over weekend rendezvous,” said an acquaintance.

When the agency was asked about the relationship, they responded, “We’ve heard that he is just one of her good friends.”

A Stunning Transformation from Black Hair to Silver

In October ’25, Koharu Kusumi appeared in the drama “Onsha no Midare Tadashimasu! 2” (BS-TBS), playing a secretary caught in an affair. She has been steadily building her career as an actress.

On December 22, ’25, she updated her SNS, revealing her hair dyed from her usual black to a silvery shade, writing:

“I’ve always wanted to go full high-tone silver, so I adjusted my schedule to make it happen. This is the brightest color I’ve ever had. Blonde doesn’t suit my personal color, so I added a hint of whitish lavender for a translucent high-tone.”

The comment section filled with praise, including remarks like “So beautiful it brings tears to my eyes” and “It suits you so well.” Fans may receive even more exciting news in ’26.