This Foolish Host Has a Few Too Many Systems

System-driven + family bonds + classic IP crossover (Lin Daiyu)

After binding five Systems, the Chosen Host turns out to be a fool

Five Systems fought furiously inside Xu Yuyan's mind, each eager to bind itself to her, the “Chosen One.” But none of them could have guessed what they would discover after the binding succeeded.

She was actually mentally impaired, a fool!

This is a lighthearted, cheerful story. Fools really do have good luck.