Yuusha Isagi No Maou Hanashi

MC didn’t expect something extra-ordinal to happen in 3 years after being recalled. He established a band that helped to overcome the Demon Lord. After that, the hero decides to settle a reliable organization that breaks any attempts of the Demon to take revanche. He aims to establish an Adventures Guild, make a proposal to his healer mate and enjoy life with her, but plans get crushed when the Demon Lord again appeals. Now the Demon asks for help against adventures as he considers MC to be the last hope.