The gacha mechanism of this game is quite different from most games currently available on the market. Although there is no pity system, the probability of getting gold (high-rarity) items is still relatively high. In the following, I will tell you about the gacha probabilities in Nikke: Goddess of Victory. If you don't know how to draw correctly, then be sure to follow my lead. Below, I will introduce the gameplay of the game's gacha mechanism, so take a look.

I. Gacha Probabilities:
Rate-Up Pool: The drop rate for SSR characters is around 4%.
Regular Pool: The drop rate for SSR characters is 2%.
Friendship Pool: Drawn by accumulating friendship points, the drop rate for SSR characters is relatively low.

II. Points to Note:
The game's gacha pools do not have a pity system. You can compare it to the gacha pools in Brown Dust 2. However, one point worth mentioning is that the probability of getting gold (high-rarity) items in this game is relatively high. But it does not guarantee that you will get the current rate-up character after a certain number of draws, so players with bad luck may not get the current rate-up character even after hundreds of draws.
However, the nice thing is that there are by-products when drawing. Drawing from the rate-up pool gives you Golden Ticket Vouchers, commonly known as Gold Tickets, and each draw from the rate-up pool gives you one Gold Ticket. Drawing from the regular pool gives you Silver Ticket Vouchers, commonly known as Silver Tickets. Both types of by-products are permanent and will not disappear even if the current gacha event ends.
Two hundred Gold Tickets can be exchanged for one current rate-up character, whether it's a regular or seasonal limited character. Silver Tickets, on the other hand, can only be used to exchange for some character bodies. It should be noted that exchanging Silver Tickets does not give you the character itself; if you do not have the character, you cannot use the body. From my personal experience, the drop rate in this game is relatively high, and Gold Tickets can often be used as a form of guaranteed method.
Currently, the game mainly has three types of characters: general company characters, pilgrim/super-standard characters, and collaboration characters. Most general company characters and pilgrim/super-standard characters will enter the regular pool one or two versions after their rate-up period. However, some seasonal limited characters, such as swimsuit and Christmas series, will not enter the regular pool. These are considered limited characters and require reprints. Collaboration characters are generally not re-released and may become permanently unavailable.

III. Gacha Pools Introduction:
By clicking on the "Recruit Members" at the lower right corner of the game interface, you can see that there are currently six types of gachas available: Little Mermaid Mi, Hara Bond Ten-Draw, Regular Recruitment, Social Point Recruitment, Paid Ten-Draw, and Newbie Guide Ten-Draw.
Paid Ten-Draw and Newbie Guide Ten-Draw are exclusive events for new players, and some players may have already drawn them, so they may not appear. The Newbie Guide Ten-Draw guarantees a gold (high-rarity) item with ten regular tickets, but note that the characters that can be drawn from this pool are all from the initial launch and do not include pilgrims. The Paid Ten-Draw requires paid jewels, and the pool includes all initial launch characters, including pilgrims, but the probability is relatively low, so it is not recommended to draw.

Above is the guide on the gacha probabilities in Nikke: Goddess of Victory. The gacha mechanism of this game is also very simple to understand. Mainly, it involves drawing from the current rate-up pool and accumulating tickets. Focus on the strong characters of the current version, and start drawing once the rate-up is released.