A man who was once called the world strongest agent ended up becoming a teacher after his retirement to train the new generation of agents. After many years of training his disciples, he is killed at the age of...

When he was young, he failed at the Magic Academy and was looked down upon by others. However by chance, he discovered a mythological medicine, so he obtained an immortal body. In order to get revenge on the...

The continent of Halkeginia is tumultuous--a place where the various kingdoms, princedoms, dukedoms, and fiefdoms strive against each other to expand their domains. They nobility scheme and plot among...