This is not an artist. Please fix your tags: OP "Sorairu Days" and Insert "happily ever after" are by Shouko Nakagawa 1st ED "Underground" is by High Voltage 2nd ED "Minna no Peace" is by Afromania "Trust" is by Marina Inoue "BREAK THROUGH THE DREAM" is by Tetsuya Kakihara BGM is by Taku Iwasaki