I'm Tone Deaf at the Beginning, My Sisters Want Me to Be a Chorus Master

Shen Dong, a music graduate from a third-rate university, went to Ukraine, bought a doctorate degree and wanted to return to his country to become a chorus teacher. By accident, the "Old Sister Filter System" was awakened! He became a chorus teacher, and with the help of the system, Shen Dong relied on the beautiful sisters in the choir to embark on the fast lane of life! His sisters insisted on praising him as a chorus master!