[Single heroine + daily love life + logic, very sweet!
Have you ever thought that there are monsters hunting humans in unknown corners?
Will the humans fleeing in panic at the feet of the 100-meter giant beast have a chance to see the sun tomorrow?
The sound of machinery came from the darkness, and the weak young man would eventually put on the mecha and bury everything.
The early stage of the book is mainly about daily love affairs, supplemented by mechas, and the early stage is a period of growth for the male and female protagonists.
It's better than other books I've read.