First, I will explain why this video can be said to be lucky. In the gacha world of the game Honkai Star Rail, if you want to get a limited character, you have to gacha. If you have reached 89 and still haven't gotten a 5-star character, then on the 90th gacha, you are guaranteed to get a 5-star character.

There’s also a rate-off system. If you’ve already obtained a 5-star character from the limited banner, you’ll be in the 50:50 rate-off position, where you’ll get either a standard 5-star character or a limited 5-star character. If you get a standard character, the next 90 pulls will be in the rate-on position, guaranteeing a limited 5-star character. If you get a limited 5-star character while in the rate-off position, you’ll remain in the 50:50 rate-off position moving forward.
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Well, it's time to explain why this video is lucky in gacha history. I got a 5-star limited character, which means I'm now at a 50:50 rate. Then, after my 76th gacha, I got another 5-star limited character, which means I won the 50:50 rate, and the next banner still kept me at the rate in the limited banner. The second lucky break was when I tried the gacha again on the limited banner, and on my 20th gacha, I won the rate again, hahaha. I felt very lucky, but I also started to feel scared because at that time, all my luck seemed to have run out, and I began to worry about my exam scores, hahaha 😂😂.