"Nam" Nucharin Ngernkhiri, known professionally as Kiirii, is a Thai singer, dancer, and member of former member of the girl group Queenz Eye (퀸즈아이) under BIG Entertainement ((주)빅엔터테인먼트). She was formerly a member of the groups SY51 (โซเมอิโยชิโนะ51 / ソメイヨシノ51) and Busters (버스터즈).

In October 2018, she made her debut—using her nickname Nam—as part of SY51 with their first digital single "Niji no Nashi" (สะพานสายรุ้ง). The group was managed by Seoul Artist Studio. In August 2019, she moved to South Korea to train under CMG Stars but had to go back to Thailand in February 2020 due to the COVID-19 pandemic. The group stopped promoting, and she opted to leave in June 2021 when her contract expired.

In May 2023, she joined the K-pop group Busters as a guest member using the stage name Nami, replacing a member who was on hiatus. She became an official member the following month. The group only released the digital single "Jokgu King" (족구왕) in early 2024 with her as part of the lineup before the group quietly disbanded in March 2025 when all the members decided not to renew their contracts with Marbling E&M (마블링이엔엠; formerly JTG Entertainment).

After the departure of four members of Queenz Eye, Nam was selected as a new member in June 2025. She re-debuted in August of that year—now using the stage name Kiirii—with the group's first-ever mini-album, "PRISM Ep.01."

(Source: MyDramaList) Edit Biography