Board Thread:Questions and Answers/@comment-29759785-20160903171007/@comment-24053170-20160904062836

A bottom up ai functions the same way as the human brain does allowing actual emotions, personality, etc. as any other living being.

Originally Yui merely simulated those emotions based on her database and couldn't truly express the same emotions as others. But after she evolves she is now fully capable of doing that.

Basically at this point Yui is mentally and emotionally the same as you or I.