The boy's not wrong about there being a lot of questions - but Shen Qingqiu was never a particularly talkative person, so he's choosing to sit through the whole explanation and sort out which questions he wants to ask at the end. His tail thumps softly against the bed as he listens, but otherwise: Silence, and the occasional tiny frown or furrowed brow.

Allergies and tempers he mentally sweeps aside, the idea of an object with its own conscious spirit isn't particularly new either, but the rest! "What is an elf, or an angel? Are they different species of demon?" And why would anyone want to glow like the sun--wait no that's not important. "And is there any explanation as to why we cannot look at the void without adverse effects?"

Because if not, he wants to investigate....