Iwasumi shrine, a place well guarded by a long line of Pristesses, each blessed by the Goddess of Lust, with this power they are able to seal demons just by kissing or engaging intercourse with them.   This would also explain why each and every one had an enormously impressive rack, like Keiko.<br/><br/>She stood infront of the Shrine seal, which was a large boulder encasing all manner of monster girls which plagued Japan over the years, she was here because she felt the air was different today..