I have discovered that I really enjoy these historical-type shows. Ruroni Kenshin, Raven of the Inner Palace, Appare-Ranman have all been really enjoyable.
I like how things all make sense, there's not really any suspension of disbelief needed with this show. Maomao is just super bright and skilled, and knows her stuff.
This was a really nice episode. Lady Black really redeemed herself after the terrible showing last time. She really puts the Tsun in Tsundere for sure, but underneath she's got a big and strong heart. I guess you would need to for healing powers. Also the calligraphy part was very neat, and I liked how she had to earn the "Ah ha!" moment.