As a spinoff of their Lunch Pack series, Yamazaki is now offering flavored, hard rusk bread made from bread crust. This variety is a collaboration with a CoCo Ichibaya, a popular chain of curry restaurants, and is not surprisingly curry flavored. The packaging looks similar to that for the Lunch Pack sandwiches. I personally like seeing bread crust being made use of because in Japan crust is typically cut off and presumably wasted. ヤマザキ ちょいパクラスク
Photo is a web capture for explanatory purposes, copyright belongs to the company.