Osato Haruna

Who is Osato Haruna? Meet Billlie’s Japanese Maknae

Osato Haruna (大里 春菜), professionally known as Haruna, is a talented Japanese singer, dancer, and the youngest member (maknae) of the South Korean K-pop group Billlie, managed by MYSTIC Story. Born on January 30, 2006, in Osaka, Japan, Haruna is quickly becoming a fan favorite thanks to her unique charm, graceful dance skills, and bubbly personality.

Osato Haruna (Haruna of Billlie) – Full Biodata

Detailed biodata of Osato Haruna, stage name Haruna, the youngest member of the K-pop girl group Billlie.

# Osato Haruna, Haruna biodata, Billlie Haruna profile, K-pop idol biodata, Japanese K-pop artist, Mystic Story

Osato Haruna (Haruna of Billlie) – Full Biography

Complete biography of Osato Haruna, known as Haruna from the K-pop girl group Billlie. Learn about her early life, training, debut, and personal facts.

Early Life and Background

Osato Haruna (大里 春菜), professionally known as Haruna, was born on January 30, 2006, in Osaka, Japan. From a young age, she showed immense interest in performing arts, particularly dancing. She enrolled at GPstudio Dance Academy, a renowned dance school in Japan where she trained under top instructors, including Hana, the older sister of TWICE’s Momo.

Her time at GPstudio played a pivotal role in shaping her as a performer. There, she trained alongside future Billlie member Tsuki, and the two developed both their talents and friendship. Haruna was also featured on the Japanese variety show Matsuko Kaigi in 2020, showcasing her budding charisma.

Move to South Korea and Training

In late 2020, Haruna made the bold decision to move to South Korea to pursue a career in K-pop. She joined MYSTIC Story, a well-known entertainment company under SM Entertainment. Her move was confirmed by GPstudio in November 2020, when they announced her graduation from the academy.

Haruna underwent rigorous idol training in South Korea, preparing in vocals, dance, and Korean language. Her dedication and growth eventually earned her a spot in MYSTIC Story’s first girl group.

Debut with Billlie

Haruna was officially revealed as the fifth member of Billlie on October 5, 2021. The group debuted on November 10, 2021, with their first mini-album The Billage of Perception: Chapter One, featuring the title track “Ring X Ring.”

In Billlie, Haruna serves as the lead dancer, lead vocalist, and the group’s maknae (youngest member). Her calm and sweet personality earned her the affectionate nickname “Turtle Maknae” from fans.

Personality and Interests

Haruna is known for her gentle demeanor, kind heart, and playful nature. She is an ESFP on the MBTI personality scale—outgoing, warm, and enthusiastic. She enjoys watching movies and spending time with her fellow members.

Her role model is Seulgi from Red Velvet, and she aspires to grow as a performer like her. Haruna’s unique mole under her eye adds to her visual charm, and she’s admired for her natural beauty and expressive stage presence.

Achievements and Discography

• Debut Album: The Billage of Perception: Chapter One (2021)
• Notable Songs: Ring X Ring, GingaMingaYo, Eunoia, BYOB (Bring Your Own Best Friend)
• Music Show Appearances: M Countdown, Music Bank, Inkigayo, and more
• Variety Shows: Featured in group content and promotional activities

Future Prospects

As of 2025, Haruna continues to impress fans with her steady development and dedication to the group. Recently appearing in Billlie’s releases like “BYOB (Bring Your Own Best Friend)” and “Eunoia”. Her graceful visuals and steady improvement make her one of the most promising young idols in the 4th generation of K-pop. With her natural charisma and talent, she is expected to rise even further in the world of K-pop and potentially branch into acting or modeling in the future.

List of Fun Facts About Osato Haruna (Haruna of Billlie)

Here Are 20 fun and interesting facts about Osato Haruna, the youngest member of the K-pop girl group Billlie.

• Her full name is Osato Haruna (大里 春菜).
• She was born on January 30, 2006, in Osaka, Japan.
• Haruna is the youngest member (maknae) of the K-pop group Billlie.
• She trained at GPstudio Dance Academy in Japan.
• Her dance instructor was Hana, the sister of TWICE’s Momo.
• She trained alongside fellow Billlie member Tsuki before debuting.
• Her blood type is O.
• Her MBTI personality type is ESFP—enthusiastic and outgoing.
• Her nickname is the “Turtle Maknae” due to her gentle and calm vibe.
• Haruna’s favorite K-pop artist is Red Velvet’s Seulgi.
• She was introduced as the fifth member of Billlie on October 5, 2021.
• She officially debuted with Billlie on November 10, 2021.
• She is known for her distinct beauty mark under her right eye.
• She appeared on a Japanese TV show called Matsuko Kaigi in 2020.
• Her motto is: “I’ll do it until I can.”
• She enjoys watching movies in her free time.
• Her favorite Korean food is tteokbokki (spicy rice cakes).
• Her ideal type of vacation is relaxing at a quiet beach.
• She wants to try acting in the future if given the chance.
• If she could switch lives with a member for a day, it would be Haram, because of her beautiful voice.

Osato Haruna – Social Media Accounts

Fans adore Haruna not just for her beauty and talent, but also for her humility and dedication. Her soft-spoken charm and powerful dance presence make her a standout figure in Billlie’s dynamic lineup.

Stay updated on Haruna’s journey by following Billlie’s official channels and global fan pages like @HarunaGlobal.