Houki is a first year student at the IS academy and has been friends with Ichika since they were kids though they have not seen each other for six years. She has a very long ponytail. Her place of resident is home to a kendo dojo and she has been interested in kendo since she was young. Houki even competes in kendo competitions at a national level and was the winner of the national tournament that was hosted one year before the story of Infinite Stratos began. She is part of the kendo club at the IS academy..

History:
Prior to the start of the main series, she was a childhood friend of Ichika. Her place of residence is home to a kendo dojo and she has been interested in kendo since she was young. Houki even competes in kendo competitions at a national level and was the winner of the national tournament that was hosted one year before the story of Infinite Stratos began. Her older sister Tabane is the creator of the IS yet Houki hates her because six years ago, Ichika agreed to become her boyfriend if she could win the national kendo tournament of their grade. However, the day of the tournament was also the day the IS were introduced to the world. Because of their links to Tabane, Houki's family was placed under government protection and Houki was forced to withdraw from the kendo tournament. Since that incident, Houki has hated her sister for moving her away from the boy she loves and abandoning their family.