Ose Raiki

CLOUDTENPEDIA - Ose Raiki (大瀬 礼葵, Ōse Raiki, born March 27) is a Japanese idol, dancer, and singer. He is a member of the male idol group Cloud ten, a theatre-based boy band project produced by Yasushi Akimoto and jointly managed by Y&N Brothers, Mitsui Fudosan Group, and Tokyo Dome Corporation. Ose is one of the thirty first-generation members who debuted on April 23, 2026, and he performs as part of one of the group's three rotating units at the dedicated Cloud ten THEATER in Odaiba, Tokyo.

Early Life and Background

Ose Raiki was born on March 27 in Kumamoto Prefecture, Japan. He is affiliated with the Kumamoto-based talent agency Valentine Deux, which announced his debut with Cloud ten in April 2026, describing him as a former trainee of the agency. Details about his early education and family background remain private, but his journey from Kumamoto to Tokyo for his idol career has been a recurring theme in his public statements. During a press event ahead of Cloud ten's first theatre performance, Ose expressed concern about a major earthquake that had recently struck his home region, stating that his family was safe but that he was worried about those affected, and that he hoped to deliver a shining performance on stage to bring some encouragement.

Ose has a background in competitive swimming, having practiced the sport for approximately eight years. He has cited this experience as formative in developing his perseverance and physical stamina, qualities he now considers central to his identity as a performer. He has also mentioned that his observation skills, honed through years of swimming and watching others, have contributed to his ability to imitate fellow members' voices, a talent that has become a recognizable part of his persona.

Career

Joining Cloud ten

In early 2026, Yasushi Akimoto announced a new audition project to create a male theatre-based idol group. The project, called "Theater Boys Group," was a collaboration between Y&N Brothers, Mitsui Fudosan Group, and Tokyo Dome Corporation, with Akimoto serving as general producer. The group's name, Cloud ten, was derived from the phrase "Cloud nine," which signifies supreme happiness, with "ten" chosen to represent surpassing that existing framework and achieving even greater joy. A dedicated theatre with approximately 300 seats, named Cloud ten THEATER, was planned for the Diversity Tokyo Plaza in Odaiba, with a concept inspired by New York's Off-Broadway. The venue was designed with a U-shaped seating arrangement, placing the front row about one meter from the stage to create an intimate, immersive experience for audiences.

Ose was selected through this audition process alongside twenty-nine other young men from across Japan, ranging from Hokkaido to Kagoshima. The thirty members were officially unveiled at a press conference in Tokyo on April 23, 2026. At the event, the group performed three original songs: "Sarigenai Mirai," "Kimi to Someday," and "Gomen Ai Koso Subete." Ose was positioned among the middle row of members in the official group photograph, standing alongside Abe Haruto, Inaba Toma, Ueno Seiji, and others.

Reflecting on his selection, Ose stated that his feelings were a mix of eighty percent joy and twenty percent anxiety and impatience, but that the dominant emotion was a determination to rise to the challenge. "The feeling of 'I'm going to do this!' came out first, rather than simple happiness," he recalled in a later interview.

Debut Events and Theatre Performances

Cloud ten began their public activities on April 26, 2026, with a series of debut events held at various commercial venues across the Tokyo metropolitan area, including Mitsui Outlet Park Yokohama Bayside, Lalaport Kashiwanoha, Diversity Tokyo Plaza, and Lazona Kawasaki Plaza. The members were divided into three teams that rotated performances, allowing each unit to develop its own dynamic and stage presence while showcasing the full group's versatility.

Ose participated in one of the earliest debut events on April 26, performing as part of the second division alongside Inaba Toma, Ueno Seiji, Owada Ayumu, Komai Riku, Komine Yuto, Seki Yamato, Nemoto Atsushi, Hamaya Motoki, Hiraishi Aiki, and Watanabe Ayato. On June 6, he appeared in the first division at the Urban Dock Lalaport Toyosu main stage, performing alongside ten other members under clear skies and unseasonably hot weather. The group delivered three songs—"Gomen Ai Koso Subete," "Kimi to Someday," and "Sarigenai Mirai"—with Ose contributing to the full-stage choreography that characterized the performance.

The official opening of Cloud ten THEATER took place on August 2, 2026, with the first performance featuring a separate team of members. Ose's team, the third unit, held its inaugural theatre performance on August 4, 2026. His unit consisted of eleven members: Ose Raiki, Kimura Haru, Komine Yuto, Sato Ryusei, Nishiyama Iyota, Hiraoka Motoki, Hiraishi Aiki, Fukami Shuto, Fukuda Yusei, Fukuma Shin, and Honda Takamasa. The performance opened with the title song "We're Cloud ten" and featured a total of sixteen songs, including the energetic dance number "Bokutachi no Jiyuu" and the ballad "Tsugi ni Aeru Hi Made." Following the performance, Sato Ryusei and Honda Takamasa commented on behalf of the team, with Sato describing the unit as fresh and powerful, and Honda noting the strong individuality of each member.

Role and Reception

Within Cloud ten, Ose has been characterized by media coverage as a "cool-type" member whose primary weapons are the perseverance cultivated through swimming and his well-trained physique. His smile has been highlighted as a defining feature; he has stated that fellow members compare it to a wallaby's, and he aspires to deliver "the world's happiest smile" to audiences. He has identified Okada Junichi as a role model for his expressiveness and dedication to self-improvement, and BTS's V for his stage presence and versatility as an actor and performer. His stated goals include making Cloud ten the first group that comes to mind when people think of idols, and performing live in every member's hometown.

Personal Life

Ose's hobbies include muscle training, which he pursues with the goal of achieving a physique inspired by his role model Okada Junichi, and touring dessert shops. He has a particular fondness for cheesecake and vanilla shakes, which he also cites as his primary method of stress relief. His special skills are swimming and impersonations of his fellow Cloud ten members, the latter of which he attributes to his observational abilities developed over years of competitive swimming.

In terms of personal relationships within the group, Ose has been featured in social media posts with other members during their off-days, including sightseeing around Tokyo. In a post on the official Cloud ten member account, he mentioned enjoying Tokyo sightseeing with fellow members and asked fans for recommendations on places to visit during future days off.

His profile lists him as standing 170 centimeters tall with blood type A.

Public Image and Significance

Ose Raiki represents a new model of Japanese male idol emerging from the theatre-based project pioneered by Yasushi Akimoto. Unlike traditional idol groups that rely primarily on televised appearances and concert tours, Cloud ten's structure emphasizes daily rotating performances in a dedicated theatre, allowing members to develop their stagecraft through continuous live performance and close audience interaction. Ose's background in competitive swimming and his emphasis on physical training reflect the project's broader emphasis on discipline and continuous improvement, values that Akimoto himself articulated in his message to the members: "I want you to have a baseless confidence that you can do something. If you're running and you're unsure whether to go right or left, go with your intuition. If you're wrong, you can come back. If you're young, you can return and go the other way."

The diversity of Cloud ten's membership—encompassing university students from prestigious institutions, former athletes, a former chef, and individuals from across Japan—has been positioned as a defining characteristic of the group. Ose, as a Kumamoto native with a competitive swimming background and a self-described dedication to self-improvement, contributes to this narrative of varied backgrounds converging under a shared ambition. His expressed commitment to bringing encouragement to his home region following a natural disaster further illustrates the role that regional identity and personal history play in the public personas of Cloud ten's members.