BREAKING: NMIXX are trading Seol Yoon-a, better known as "Sullyoon", the complete rights of the songs "Sonar" and "High Horse" and a full 24 hours of member Jang Kyu-jin to LE SSERAFIM for maknae Hong Eunchae, sources tell ME, JYP approached Bang Si-Hyuk recently with the idea and after long hours of negotiations, they were able to come up with what both parties believe to be a move that will significantly improve the current state of both group.