Arafo Kenja No Isekai Seikatsu Nikki - Kimamana Isekai Kyoushi LifeAround 40 Kenja no Isekai Seikatsu Nikki ~ Kimana na Isekai Kyoushi Raifu ~ ; Arafoo Kenja no Isekai Seikatsu Nikki - Kimamana Isekai Kyoushi Life ; Around 40 Kenja no Isekai Seikatsu Nikki ~Kimana na Isekai Kyoushi Raifu~ ; The Diary of a Sage Around 40 Living in Another World - Carefree Another World Teacher Life ; アラフォー賢者の異世界生活日記 ~気ままな異世界教師ライフ~