Wait, this is no harem right, then who would be with Lacht? Then I guess it would come naturally, but he is a demon means that most humans won't live very long compared to him.
i have a question that needs an answer, who is the bride-to-be/waifu of lacht? am hoping (and i think most people are) its frieren cause...well i dont need to give a reason right? she's basically the heroine of the story
I don't really mind long explanations of magic. However, Ishida's explanation is too abstract from Frieren's point of view. Therefore, just create a magic system from Mahouka Koukou if you want to keep the combination of magic and science
please do some thing like barter/exchange spell the mc not that helpless unless you planning to make mc frieren simp, anyway you do good writing frieren character before her new adventure
+1 on keeping just one name (Lacht). You also need to edit your chapters before posting. There are quite a few spelling mistakes and odd choice of words.
.. stop with the misinformation the Christian church never had a fued or even band the study of science that I'm afraid is fiction don't believe me just do some research