Tensei Ryoushu no Yuuryou Kaitaku: Zense no Kioku o Ikashite White ni Tsutometara, Yuunou na Jinzai ga Atsumari Sugimashita

I was working for a black company when I collapsed from exhaustion and woke up to find that I had been reincarnated as the son of a weak lord in another world. I was attacked by a demon, lost my parents, and took over a territory that no longer had any residents... The path I chose to survive was to gather people under extremely white conditions!

This is a territory management fantasy that starts with no residents!