My Roommates Traveled Through Time and Everyone Was Cheating, and I Was the Only One Who Was a Piece of Cake.

[Complex ingredients] [Partly borrowed from the magic to modify the XX throne] [There are many protagonists] [Villains have brains and there are many] [No system] [There is a female supporting role but the male protagonist has no harem] I would like to write this book to commemorate my classmate and friend, and I hope you can comment on it. After all, the writing is not very good, and the plot and setting are quite difficult to explain in one sentence. Understand? Finally, I wish you all a happy new year and thank you for your company and support.