User blog comment:Jopjopjop/Volume 20 Spoilers/@comment-26865730-20150810190451/@comment-1359322-20150811033431

It's the Kichijōten shrine or to be exact a temple, the shrine for the Japanese goddess of happiness, fertility, and beauty. Check the history here

Also if you consider the backstory for Ise's parents, Ise's name is actually a very meaningful one it means "one's sincerity" most likely referring to Ise's parents sincerity to the Shinto for granting them a son.

This is actually something very touching not something to be a joke, especially the part where Ise's father kowtow to the main temple, the Kichijoten temple is quite large if his father kowtow which is something done once every three steps, he'd at least have kowtow for several hundred times, and he didn't visit once he visit multiple times, that is like Ise's father literally begged the Gods/Heavens to let them have Ise.