Look around at the T-junction of antique street at the entrance of the academy and the street leading to the mule market. There is an advertising sticker in front of a shop that buys pens, ink, paper and inkstones, and the shop is also promoting it. It seems to be packaged, and the cost seems to be 1. 1 ten thousand. You can use the name "education study room" to search online.
/qmsf This is his website.