It can be obtained with monthly sing-in gift (3 items) or with 600 items of five aggregates, or bought with special food worth 1200 liang of unbound silver.
Meridian opening book uses 2 mil of cultivation points. To open it need to lvl up 4th inner of the related sect to lv30, or use a meridian opening book. It can be obtained with monthly sing-in gift (2 items) or with 400 items of five aggregates, or bought with special food worth 800 liang of unbound silver. Meridian opening book uses 1.5 mil of cultivation points. To open it need to lvl up 3rd inner of the related sect to lv20, or use a meridian opening book. It can be obtained with monthly sing-in gift (1 item) or with 200 items of five aggregates, or bought with special food worth 400 liang of unbound silver. Meridian opening book uses 1 mil of cultivation points. To open it need to lvl up 2nd inner of the related sect to lv20, or use a meridian opening book. It can be obtained with monthly sing-in gift (1 item) or with 120 items of five aggregates, or bought with special food worth 240 liang of unbound silver. Meridian opening book uses 500k of cultivation points. To open it need to lvl up 1st inner of the related sect to lv25, or use a meridian opening book.