What you should say is Nai Nai who sings "DuDu, please make way". If so, she comes from Counter-Terrorism Elite Online, which turned out to be an extraordinary role in this game launched last summer. Since it came out, its popularity has been very high. Players have also created a lot of derivative materials around Nai Nai, and even her mantra "DuDu, please make way" has become a high-frequency word among players. Therefore, the official made a debut plan for Nai Nai while the iron was hot. Nai Nai-based fan fiction-Backstory Animation-Nai Nai's first single is tailor-made. This wave of official work is painstaking.