A SSR needs 6000 letters, but decomposing a SSR can get 750 letters, SR 100 letters, R5 letters. In the demon seal, both SR and R are five letters, while the two-faced Buddha has only 500 letters.
Then the question is, how long does it take to exchange an SSR 6000 imperial edict?
Ignore those Oho Ou friends who already have a solid family background, and count from 0.
1 month without stopping the liver, counting all kinds of activities, I believe that 3000 hooks are guaranteed income, which means that there will be 30-35 blue tickets every month without receiving money, not counting SSR, and the probability is too low. It should be normal to draw 25 R cards, and the rest may be SR.
Another way to open an R card is a junk ticket. Issue 10 junk tickets every day, almost. You are lucky to have 2-5 R cards, even 5.
Ghost Night+Fragment Donation+Demon Seal: SR cards can gather at least 2-5 cards a month (not counting SR cards with demon seal on purpose), and R cards+Demon Seal SR cards can summon more than 10.
Let's do the math here. Every month, there are 7 to 15 SR cards and 37 to 50 R cards, which are converted into letters:
7* 100+37*5=885,, 15* 100+50*5= 1750
Together with the 600 issued by the system at the beginning, there is also the double-faced Buddha 500 that can be decomposed almost once a month.
That is, between 1985-2850 royal letters, ordinary non-chieftain players can save for at most one month, and it takes at least three months to save 6000 royal letters. If you look at it this way, the renewal time of Yuxin Store will definitely be less than three months, but it will definitely not be possible to change it once a month. Therefore, it is a bold guess that the update frequency of the Yuxin store in the shrine is about 6 to 8 weeks.