​There are four Houses at OTS: Bushi (Yellow House); Musha (Green House); Tsuwamono (Blue House); and Samurai (Red House). Each House has two House Team Captains, who help at weekly House Team games, and also with tallying House Points and participating in House Team assemblies. Each Japanese name means "Warrior", in honour of General Oyama, who was a decorated general and for whom the village of Oyama was named after. Each house also has a Kanji symbol that means the House Name.