
Quick answer — "KISS OF DEATH (Produced by HYDE)" by Mika Nakashima and produced by Hyde is the opening theme of DARLING in the FRANXX.
"KISS OF DEATH (Produced by HYDE)" by Mika Nakashima and produced by Hyde is the opening theme of DARLING in the FRANXX.
"KISS OF DEATH (Produced by HYDE)" is performed by Mika Nakashima and produced by Hyde.