TV Harmony Secret Harmony Secret 6.2/10 by 1 users Two business heiresses—Aiwarin and Maevika—from a hotel empire and from a department store dynasty, respectively, compete for a national Duty-Free bid. From the moment they meet, an undeniable attraction sparks. Details Casts Posters Images Title Harmony Secret Alternative Titles First Air Date 2025-07-26 Last Air Date 2025-08-09 Number of Episodes 8 Number of Seasons 1 Genres Drama, Networks ONE 31, iQIYI International, Casts Punyapat Wangpongsathaporn, Saranphat Pedersen, Nichapalak Thongkham, Jiratchaya Kittavornsakul, Akalavut Mankalasut Plot Keywords sports, Aiwarin Punyapat Wangpongsathaporn Maevika Saranphat Pedersen G Jirana Nichapalak Thongkham Jam Yolada Jiratchaya Kittavornsakul Rachen Akalavut Mankalasut