全身 ぜんしん全霊 ぜんれい
zenshinzenrei

Noun

1. complete devotion; body and soul; one's best

Yojijukugo
かれ全身 ぜんしん全霊 ぜんれい仕事 しごと んだ。
karewa zenshinzenrēo shigotoni uchikonda.
He gave body and soul to his job.