I am the author of the Mecha Monogatari
series, which currently has two installments: Stone King
and War and Snowflakes
Stone King is a science fiction story set in a world where giant extraterrestrial mecha known as the Eschatos are attacking the free nations of the world. Saionji Kiyohiko is a young soldier of the Japanese Self-Defense Force, who operates a twenty-meter-tall bipedal war machine called a titan. The story is told in an autobiographical style, with Saionji telling the story of how he became known as Ishio, the Stone King of Ibaraki.
Stone King is now available as an ebook on Amazon.
War and Snowflakes follows a day in the life of Tsuruhara Iori, an ordinary high-school student, who has to seek refuge in a subterranean bunker during an Eschatos attack, and in the process, makes a friend of one of her schoolmates, Aragaki Koji, who has a history with the Self-Defense Force Titan Corps that he would rather keep secret.
I have also written a standalone science-fiction story, called The Impossible Stairwell
, which revolves around a high school student that discovers a hidden stairwell at his school that can transport him back and forth in time. The Impossible Stairwell can be found on Amazon
More information on me and my books can be found at the TV Tropes Wiki