Relations for Tsuma x Tsuma ADV ~Hitozuma Onsen Hanjouki~

 Tsuma x Tsuma ~Koko wa H...   2000-10-27 ja  Tsuma x Tsuma 1.5 ~Koko ...   2002-05-30 ja Sequel  Tsuma x Tsuma 2 ~Motto! ...   2001-07-19 ja Same series  Tsuma x Tsuma 3 ~Koko wa...   2003-03-20 ja Same series  Tsuma x Tsuma 4 ~Koko wa...   2004-10-29 ja Same series  Tsuma x Tsuma ADV ~Hitoz...   2006-06-23 ja Same series  Tsuma x Tsuma 3.5 ~Minat...   2007-08-31 ja Sequel