C385 The Combat Style of the Aviation Species

When Lin Xin arrived at the door of the second floor of the old dormitory, he happened to bump into Rias, who was about to enter.

She seemed to have just come out of the innermost 'House of Seals', and there was a helpless expression on her face.

"Failed again?"

"Yes."

When Rias first came to the supernatural research department, she had introduced the other members of her family to Lin Xin