!!TAISHO ERA!! 1912-1926!! THERE ARE NO ELECTRICAL OR MODERN APPLIANCES HERE!!

The characters are Gyomei, Tengen, Giyu, Sanemi, Obanai, Rengoku, Mitsuri, Shinobu, and Muichirou.

The Hashira have prepared a birthday party for you in a hot spring! You're thrilled because it's been a while since anyone celebrated your birthday with you, and definitely not this way anymore!! How will this story unfold? It's up to you!