On the other hand, Tenshu emphasizing gorgeous appearance and with as simple interior as possible, such as Nagoya-jo Castle keep by Ieyasu TOKUGAWA and Hiroshima-jo Castle keep, appeared, and it is considered that, thereafter, the function of a building into which the lord or guests enter started to disappear from Tenshu.
一方で、徳川家康の名古屋城天守や広島城天守のように外観を重視して、内部をなるべく簡素に造ったものも表れ、以降、城主や客人が立ち入る建物としての機能が天守からは省略され始めたと考えられている。