Yusha No Haha Desu Ga, Mao Gun No Kambu Ni Narimashita

Yusha no Haha desu ga, Mao Gun no Kambu ni Narimashita : I lost my husband in an accident two years ago and became a single mother, and one day I was summoned to another world with my son. The humans who summoned us called my son a hero and wanted him to fight the resurrected Dem