Bahasa Jepangnya “menulis khusus”

karya orisinal; karya baru; karya khusus ditulis; menulis khusus

original (written) work (i.e. a new novel, play, music, etc.); newly written work; specially written work; writing (a new work) specially (for a publication, film, exhibition, etc.)

menulis karya baru; menulis karya orisinal; menulis khusus untuk

to write (a new novel, play, song, etc.); to write (an original work for a specific purpose); to write specially (for)