C450 Foster Father

As they walked forward, Yu Yin finally stopped in front of an old and small courtyard. He then turned around and smiled at Kui Biru.

"Why are you acting like a child?" Kui Biru scolded.

"You definitely won't expect who is living here!" Yu Yin said with a smile.

After sizing up the closed courtyard door for a moment, Kui Biru turned her head and asked in puzzlement