Introducing the member profiles of ROIROM! Explanation of age, height, agency, debut song and fan club information

ROIROM isIdol duo that debuted on May 7, 2026It is!

Hiromu HondaandMichi HamagawaThe idol duo ROIROM is set to have a solo live at Yokohama Arena in July of the same year! This is an idol group that is currently attracting attention.

In this article, we will explain the profiles and agencies of ROIROM members.

For those who want to support their favorite members and make their favorite members happy,Oshi Ad®︎ (Birthday/Support Ad)is recommended.

Oshi Ads®︎ (Birthday/Support Ads) is a culture that originated in Korea, and is an ad that fans place as advertisers themselves in order to support their "favorite" (idol, actor, artist, athlete, VTuber, anime character, etc.).

Our company is close to the feelings of fans who "want to support their favorites" and "want to convey their feelings," and has supported over 7,000 favorites (as of September 2026)!
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What is ROIROM?

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A post shared by ROIROM (@roirom_official)

(Left: Daimu Hon; Right: Michi Hamakawa)

ROIROM is a Japanese male idol duo. Formed on May 8, 2025,He made his major debut on May 7, 2026.

ROIROM's major debut song is "CLASSIC WAVE". Pre-distributed as Debut Digital Single on May 7, 2026🎶

Honda and Hamakawa first met in 2023. That was when it was decided that I would appear on the idol audition program ``ASIA SUPER YOUNG'' co-produced by China and Hong Kong.

Tomoki Nishiyama of TAGRIGHT, who will make his debut in July 2026, and all three members from Okinawa's entertainment production company Cat's Eye participated in this audition.

The three of them were called the "Three Cat Eye Brothers" and performed YOASOBI's "Idol."

In 2024, Honda and Hamakawa participated in the "timelesz project" and remained until the final screening. However, he did not join.

After ``timelesz project,'' Honda was considering working as an individual, but decided to return to Cat's Eye.

Hamakawa was also thinking about returning to Cat's Eye at the same time, and the agency approached him about working together.

Through these circumstances, the two decided to work as an idol duo.

Major debut on May 7, 2026!

ROIROM isMajor debut on May 7, 2026fulfilled.

We will be performing live at Yokohama Arena on July 19th and 20th of the same year.♪

Origin of the name ROIROM

ROIROM isIt was created by combining the names of Hamagawa Roi and Honda Hiromu.。

ROIROM was created by combining Michi's "Roi" and Hiromu's "Romu".

Fan name is "cHaRm (Charm)"

ROIROM's fan name is"cHaRm (charm)"It is.

By the way, cHaRm (charm) has the meaning of ``talisman,'' and it represents the couple's wish that ``the people who support them will always be by their side.''✨

The fan name was decided during ROIROM's first live broadcast! Hamakawa and Honda made the decision together with their fans.

After the live broadcast, a photo of the two holding a sketchbook with "cHaRm" written on it was also uploaded to X.

FC live streaming
Thank you for watching😊

Fan name is "cHaRm" (charm)
It was decided to👑#ROIROM_cHaRm#ROIROM's first live broadcast#ROIROM Week Overtime#ROIROM #RoiRom#motodaiyume💎 #Michimi Hamakawa🍯 pic.twitter.com/yKw8Hicl4N

— ROIROM (@roirom_official) June 7, 2025

Where is ROIROM's office?

The entertainment agency to which ROIROM belongs is Cat's Eye.

Cat's Eye is an entertainment production company headquartered in Okinawa Prefecture.

Chuning Candy, a dance and vocal group that was active until 2022, was also a member.

Introducing the profiles of ROIROM members in order of age!

Here, we will introduce the profiles of ROIROM members in order of age.

Hiromu Honda

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A post shared by Hiromu Honda (@hiromuun_)

My hobbies are songwriting, playing the guitar, and visiting cafes. My favorite things are walking and muscle training.

I'm a singer who grew up listening to music under the influence of my parents.

Honda's clear and beautiful singing voice has captured the hearts of many fans.

Michi Hamagawa

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A post shared by HAMAGAWA ROI (@roy_kun13)

My hobbies are composing music, reading, and collecting perfumes. My favorite things are eating, sleeping, and walking.

I love to dance, and I kept that feeling in my heart as I ran up the ladder.

When he was a child, he loved airplanes and dreamed of becoming a pilot.

Hamakawa has appeared on numerous music programs and variety shows, and in the spring of 2026, he will appear on “Yandoku! ” (Fuji Television Network) in episode 9 as Ren Saionji.

Is there a fan club for ROIROM?

ROIROM has a fan club.

As of May 2026,Annual membership fee is 6,600 yen (tax included)It is.

ROIROM's fan club page is below.📝

ROIROM fan club

When you join the fan club, you can expect the following benefits:💕✨

How to join the fan club

You can join the fan club by following the steps below.

If you are considering joining the ROIROM fan club,Please read the instructions on the fan club site or app and register yourself.

If you want to support Japanese idols, we recommend Oshi ads (birthday/support ads)!

I'm sure some of you are thinking, "I want to celebrate my favorite's debut!" or "I want fans to work together and do something for my favorite!"... ^^

For those who feel this way, we recommend:Push advertisement (birthday/support advertisement)It is.

What is a push advertisement (birthday/support advertisement)?

Oshi advertisements (birthday/support advertisements) are one way to convey thoughts such as ``I want to celebrate my favorite's birthday!'' and ``I want to tell my favorite that I love him!''

By posting your favorite advertisements (birthday/support advertisements) at stations and on street visions, you can have the opportunity to let many people know about your favorite.👀

Furthermore, there is a possibility that your favorite person will see your favorite advertisement (birthday/support advertisement).✨✨

Oshi advertisements (birthday/support advertisements) are advertisements that fans place themselves to support their favorite "favorites".

Fans can directly convey their feelings of ``thank you'' and ``I love you'' to their favorites by placing advertisements for their favorites (birthday/supporting advertisements).

If you post at special times such as your favorite's birthday, 10th anniversary of debut, the last day of a tour, the release date of a new song, or the anniversary of XX sales, you will be able to convey your blessings and support even more strongly.

Also, when advertisements are placed inside stations or on street displays, they catch the attention of people who are not familiar with the idea."That idol is so cool! Who is she?" "This girl is cute! Is she an idol?"This often creates an opportunity for people to become interested and gain new fans.

In other words, the push advertisement (birthday/support advertisement) is

・Send gratitude and congratulations to the person in question

・Expand your circle of fans ・Increase your popularity

Therefore, it is a very nice way to support others.

Introducing ROIROM's promotional advertisement (birthday/support advertisement) examples!

Here, we will introduce an example of ROIROM's promotional advertisement (birthday/support advertisement). If you are considering advertising (birthday/support advertising), please refer to this.👀

Advertisement example: ROIROM

⭐️ ROIROM case study⭐️
[Media name] Shinjuku Unica Vision
[Period] 2025/11/20-2025/11/26#ROIROM#advertisement #support advertisement #BirthdayAdvertisement #Birthday Advertisement#BirthdayJAPAN #Birthdayevent pic.twitter.com/HrQ43HiXwq

— BirthdayJAPAN (@birthday_ad_jp) December 2, 2025

ROIROM's promotional advertisement (birthday/support advertisement) was published in Shinjuku Yunika Vision.

The design is based on blue, and the yellow text makes it a stylish push advertisement (birthday/support advertisement).

Since many people gather around Shinjuku Unica Vision every day, this should have been an opportunity for many people to learn about ROIROM, which has just been formed as of autumn 2025.

Advertisement example: ROIROM Michimi Hamakawa

⭐️ #BirthdayJAPAN push advertisement example ROIROM Michi Hamakawa ⭐️
[Media name] Shibuya Pandora Vision
[Period] 2026/01/03#ROIROM #Michimi Hamakawa#advertisement #support advertisement #BirthdayAdvertisement #Birthday Advertisement pic.twitter.com/kdmKsrPK6K

— BirthdayJAPAN (@birthday_ad_jp) January 14, 2026

ROIROM Michimi Hamakawa's favorite advertisement (birthday/support advertisement) was published in Shibuya Pandora Vision.

The design has Hamakawa's bright and gentle smile printed all over it.

Shibuya Pandora Vision is installed on the wall of the Shibuya Center Square Building in Shibuya, the epicenter of trends.

If you want to know more about push advertisements (birthday/support advertisements), check out the following!

You can easily resolve any questions or concerns you may have regarding push ads (birthday/support ads) from LINE.✨

Make it come true with your friends with “Oshikura Fan”! Dream Push Advertisement (Birthday/Cheering Advertisement) Project

I think there are many fans who think, ``I want to advertise for endorsements, but isn't it expensive?'' or ``It seems difficult to advertise on my own.''

By using “Oshi Club Fan”, anyone can easily place advertisements on Oshi.

Oshikurafan is a crowdfunding service that specializes in Oshi advertising (birthday/support advertising).

Fans who share the same feeling of "I want to advertise for my support!" gather online and pool their funds to accomplish the project.

The characteristics of Oshikura fan are as follows.👛👛

Creating and posting projects is free!
→ If you do not reach your goal, there will be no fees or cancellation fees. You can rest assured that your support money will be refunded.

Only when this goal is achieved, a portion of the support amount will be deducted as a fee.

You don't have to worry even if it's your first time, as a dedicated person in charge will support you from planning to advertising, shipping returns, and reporting income and expenditures.

"It's a high hurdle to reach out to your fan friends directly...💦” “I don’t have anyone around me who supports me, so I might not be able to do it alone.”💦For those who think, “Oshikura Fan” is recommended.

You can connect with friends from all over the country and the world online and participate within a reasonable amount (starting from a small amount, such as 500 yen), making it easier to achieve big advertisements.

Frequently asked questions about ROIROM

Frequently asked questions about ROIROM are summarized below.

What is the age difference between members Daimu Honda and Michimi Hamakawa? Also, when did you debut?

The age difference between Hon Daimu (born July 10, 2000, 25 years old) and Hamakawa Riki (born January 3, 2006, 20 years old) is 5 years. The unit was formed and started activities in May 2025, and made its major debut on May 7, 2026.

What kind of music style does ROIROM work in? Do you have a signature song?

It features a gorgeous performance centered around bright melodies and dance numbers.♪Their representative song is their major debut song "CLASSIC WAVE."

Summary

ROIROM has won the hearts of many fans in about a month since its debut.

The number of followers on Instagram is over 240,000 (as of May 2026), and their first arena live is also coming up.

Honda and Hamakawa's cool and cute looks and high performance captivate the hearts of many fans.

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In such a case, pleaseBirthdayPlease contact JAPAN!

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