- h ong ▁( S . M . ▁L Y V IN ▁Studio ) rec ording ▁engineer ▁ ▁Lee ▁Min - gy u ▁( S . M . ▁Big ▁Sh ot ▁Studio ) rec ording ▁engineer ▁ ▁Y oo ▁Ji - s ang ▁( M ono Tree ▁Studio ) rec ording ▁engineer ▁ ▁H w ang ▁Hy un ▁( M ono Tree ▁Studio ) rec ording ▁engineer ▁ ▁Je ong ▁E un - ky e ong ▁( In ▁Grid ▁Studio ) rec ording ▁engineer ▁ ▁A hn ▁Ch ang - ky u ▁() rec ording ▁engineer ▁ ▁On ▁Se ong - y oon ▁( sound ▁PO OL ▁Studios ) rec ording ▁engineer ▁ ▁Je ong ▁Ki - h ong ▁( Se oul ▁Studio ) rec ording ▁engineer ▁ ▁Ji ▁Y ong - jo o ▁( Se oul ▁Studio ) rec ording ▁engineer ▁assistant ▁ ▁Nam ▁Ko ong - jin ▁( S . M . ▁Con cert ▁Hall ▁Studio ) mix ing ▁engineer ▁ ▁K oo ▁J ong - p il ▁( Be at ▁Bur ger ) ▁( S . M . ▁Y ellow ▁T ail ▁Studio ) mix ing ▁engineer ▁ ▁Kim ▁Che ol - so on ▁( S . M . ▁Blue ▁Ocean ▁Studio ) mix ing ▁engineer ▁ ▁Je ong ▁U i - se ok ▁( S . M . ▁Blue ▁Cup ▁Studio ) mix ing ▁engineer ▁ ▁Chris ▁Ge hr inger ▁( S ter ling ▁Sound ) master ▁engineer ▁ ▁Min ▁He e - jin cre ative ▁director ▁ ▁Min