Survival Strategy Thinking with Game Theory for Save the Weak

is a Japanese light novel series written by Nobuori Nagata, with illustrations by Benio. The series began publication on August 10, 2017 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Sora, the princess of the small country Faber, was worried. Now that tensions with neighboring countries have increased and signs of war have begun to flicker, how can we protect our own country, which has low national power? The father fell ill, and the vassals of the rope of reliance emphasized only the "honor of battle" of the previous era, and no one had a concrete plan to protect the country. Will Faber perish as it is ...?

However, at that time, a person appeared in front of her. "Naoki" -The theory and thought of "numbers" handled by the young man who left the nickname of "magician" in later history was the "power to save the country" that Soarer sought ...!

No talent, no fighting power, only two brains can rely on ...! "Another World Mathematics Senki", in which a young science student and a talented princess challenge a powerful enemy called "war", is here!

Manga
The manga adaptation of the light novel: with art by Ekakibit. It was serialised in KADOKAWA's Comic Alive and released under their MF Comics Alive Series imprint from January 2020.