The person hiding in the shadows and eavesdropping was, of course, Yuan Shikai.
He had never taken the conventional route, so naturally, he had not come through the front gate.
Using his World-Breaking Mystic Eyes, he had slipped in through the moat behind Himeji Castle.
Osakabehime had been so confident that she had never dreamed someone could penetrate her barrier without making a sound.
She had not even assigned other monsters to patrol, allowing Yuan Shikai to sneak in unnoticed.
Using Earth Release and Breath Concealment from the Dao Arts, he moved through Himeji Castle as though it were deserted and explored every corner.
He had to admit, Himeji Castle seemed to house the vast majority of Japan's monsters.
That was why so few could be seen outside. They had not gone extinct; they were hiding in here.
Himeji Castle had every facility they needed. The monsters could already sustain themselves without help from outside.
After looking around, he had even spotted quite a few familiar faces.
For instance, Benienma was busy running her inn, with Kashin Koji, who looked like Illya, helping her serve the other monsters.
Among the guests, a thoroughly drunk Shuten-Douji had her arms around Ibaraki-Douji and was doing things no child should see.
In the bathhouse, Tamamo-no-Mae was soaking with Kiyohime and Ibuki-Douji, who had curled up her tail. They were discussing something.
In the garden, Kijyo Koyo in her human form, Tomoe Gozen in her oni form, and Suzuka Gozen were drinking and admiring the flowers.
There were countless scenes like these, but Yuan Shikai did not dare watch from too close. They were all powerful monsters, and one of them might notice him.
Who knew how many years they had lived in seclusion here? Perhaps they had long since forgotten the outside world.