Harigane ServiceHarigane Service.

Harigane Service (Japanese: ハリガネサービス, Hepburn: Harigane Sābisu) is a Japanese manga series written and illustrated by Tatsuya Ara. It was serialized in Akita Shoten's shōnen manga magazine Weekly Shōnen Champion from May 2014 to October 2018, with its chapters collected in 24 tankōbon volumes. A sequel, titled Harigane Service Ace, was serialized in the same magazine from November 2018 to July 2023.