Figure Shifters

is a Japanese manga series written and illustrated by Yoshimi Sato. The manga was serialized in the Dengeki Maoh magazine and published in Japan by ASCII Media Works under the Dengeki Comics NEXT imprint from July 2013.

Synopsis
An otaku junior high school student, Saizo, who loves figures and has given up on his weak self. One day, when he tried to save the girl being attacked, he transformed into his favorite war goddess figure ... !!?

(Source: Bookwalker JP - Translated)