Sekigan, Sekiwan, Sekkyaku no Majutsushi ~Mori no Koya ni Komotteitara Haya 2000-nen. Kizukeba Majin to Yobareteita. Boku wa Tada Majutsu no Tankyuu …

[MangaDex]

 

[Dzrian]

This seems interesting

 

[Kalbiaczek]

Everyone that took care of him is already dead and he won't know untill they tell think that's sad