So, my friend decided to test out the chance to get Platinum Line in the gacha. As you know, the chance are low, but how low? Well, we decided to test it with 200 spins.
Now, for some factors. When you get an item from the gold (costumes) and red (underwear), they are eliminated from the gacha, meaning you cannot roll them again. This does not mean that if you were to "roll" gold, you would get platinum. It just means they are no longer being rolled.
Second, after testing out some things, we found out that the items are not decided by percentage, but rather by weight. Each item has a "weight" in which contributes the chance you get it in the end. An item with less weight means it's harder to get. It means that even if you won all the gold or red items, the weight is the same. It just gets eliminated. The weight of each category, is sadly in the server's binaries, and no amount of sniffing or mining won't it.
Fortunately, during our experiments, we won all the gold and red items before we even got a sasuke scroll. So we started the 200 count from there. We'll categorize how much we won from each category, rather than items. Here is the results:
200 Rolls
Platnium Line (Sasuke)- 2
White Line (Ougi) - 51
Green Line (Skill Cards)- 62
Blue Line (Misc) - 85
With the Gold and Red line up eliminated, we roughly get:
0.5%~1% chance to realistically get Sasuke
Surprisingly, the Ougi line is not extremely rare once the gold and red have been eliminated. If you're aiming for an Ougi, you got 25% chance to obtain an ougi card, whether it is one you need is in the air.
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Now, we did a 2nd one with a second account, and he charged up OC until he got all 5 SASUKE scrolls and stopped once he got 5. He spun 437 spins. The results:
437 Spins
Platinum (Sasuke) - 5
Gold (Costume) - 4
White (Ougi) - 121
Red (Costume) - 4
Green (Skill Cards) - 142
Blue (Misc) - 161
This may not be totally accurate, since Gold and Red gets eliminated, but from a fresh start, the chance to get 5 was... 0.01% to get all 5 scrolls.
What does it mean?
The chance to get Sasuke is low. Very low. Now, this is just from our own observation, there are some people who probably got all 5 using less than 40 spins, and some who are unlucky, and even after 1000 spins, won't get all 5.
But in any case, betting on a 0.5%~1% is pretty interesting.