Ok, I did manage to return one book and borrowed two more, but when I tried to borrow a third one which I wanted most, it says that my loan quota has reached. So I went to the concierge to check it out because I just returned one and they told me to wait. Before that, I thought it was hopeless, so I left the book on the table. And poof! When I return (after 1min) it disappeared! -.-
And then I went to Popular, wanting to get a Vocab book and travel guides. Got the former but couldn't find the latter. The only productive I did was to get cakes for my dad and Starbucks card for myself. The best thing is, I forgot the most important thing of topping up my bus card!!! -.-