SEREIN (세린) Is a South Korean Female Duo Under JJ Entertainment. The Duo Debuted July 29, 2019 with the Debut Single, ℙ𝕖𝕣𝕗𝕖𝕔𝕥 𝕎𝕠𝕣𝕝𝕕
''𝐋𝐞𝐭'𝐬 𝐄𝐜𝐡𝐨, 𝐖𝐞 𝐀𝐫𝐞 𝐒𝐞𝐫𝐞𝐢𝐧!''
Started/Finished: 9/27/21-10/2/21
SEREIN (세린) Is a South Korean Female Duo Under JJ Entertainment. The Duo Debuted July 29, 2019 with the Debut Single, ℙ𝕖𝕣𝕗𝕖𝕔𝕥 𝕎𝕠𝕣𝕝𝕕
''𝐋𝐞𝐭'𝐬 𝐄𝐜𝐡𝐨, 𝐖𝐞 𝐀𝐫𝐞 𝐒𝐞𝐫𝐞𝐢𝐧!''
Started/Finished: 9/27/21-10/2/21