▁it ▁and ▁chose ▁to ▁write ▁a ▁screen play ▁instead . ▁ ▁K ish im oto ▁requested ▁that ▁the ▁characters ▁rely ▁on ▁the ▁hand - to - hand ▁combat ▁moves ▁from ▁ta ij ut su ▁rather ▁than ▁the ▁regular ▁nin ja ▁techniques ▁from ▁nin j ut su . ▁This ▁was ▁a ▁change ▁from ▁the ▁previous ▁Nar uto ▁films . ▁K ish im oto ▁identified ▁Nar uto ' s ▁f ights ▁alongside ▁S as u ke ▁against ▁M om osh iki ▁as ▁the ▁highlight s ▁of ▁the ▁film ▁and ▁asked ▁that ▁the ▁film ' s ▁staff ▁pay ▁close ▁attention ▁to ▁those ▁sequences . ▁He ▁said ▁that ▁the ▁staff ▁had ▁very ▁few ▁ideas ▁on ▁how ▁to ▁advance ▁the ▁story ; ▁writer ▁U ky ō ▁K od achi ▁developed ▁the ▁idea ▁that ▁Bor uto ▁U z um aki ' s ▁Ras eng an ▁move ▁becomes ▁invisible ▁when ▁activ ated . ▁ ▁The ▁script ▁was ▁initially ▁completed ▁around ▁the ▁end ▁of ▁January ▁ 2 0 1 4 ▁and ▁was ▁final ised ▁a ▁month ▁later ▁after ▁a ▁few ▁corre ctions . ▁Even ▁though ▁K ish im oto ▁had ▁worked ▁before ▁on ▁Road ▁to ▁Nin ja ▁( 2 0 1 2 ) ▁and ▁The ▁Last ▁( 2 0 1 4 ), ▁this ▁time ▁he ▁encountered ▁various ▁problems ▁because ▁of ▁his ▁greater ▁invol vement ▁with ▁Bor uto ▁— ▁specifically ▁writing ▁the ▁script . ▁To ▁prepare ▁for ▁Bor uto , ▁K ish im oto ▁said ▁that ▁he ▁had ▁read ▁a ▁book ▁about ▁the ▁process ▁of ▁creating ▁screen plays . ▁He ▁added ▁that