Kucci is a Japanese singer-songwriter born in Nagoya, Aichi Prefecture, Japan. In 2024, she studied abroad in Bangkok, Thailand, where she learned to speak Thai. She began song writing at the age of seventeen and has played piano and guitar from a young age. Signed with Sony Music Entertainment (株式会社ソニー・ミュージックエンタテインメント), Kucci made her debut on March 20, 2025, with the OST "Tokimeki" (ときめき). In January 2026, she made her acting debut with a leading role in the anthology series segment "MuTeLuv: Love Lock" (MuTeLuv ตอน เลิฟ ล็อก).