It's kind of reincarnation into another world tropes. MC has multiple souls from another world. If i remember corrently, one of them is otaku and another is a samurai that love money. He used his knowledge to grow beets and make sugar out of it. MC's mom is scary. There were chapters were he had to defend his beets and sugar production secret from spies.

Isekai Tensei Soudouki

That was fast. Thx a bot.