In Japanese cartoons, besides Toshi Utsumi and Cat's Eye, some policemen know the special identities and abilities of the three sisters, such as the boss in Toshi Utsumi. However, who else knows these details? Different versions may be different.

I'm sorry I can't provide more information about what the thief stole because I can't remember the specific plot and details.

I'm not sure whether Xiao Tong spent the night in Spring Night or Toshi Utsumi has gone to bed. Because different versions and adaptations of animation may be different.

First of all, as for whether there are other policemen or others besides Toshi Utsumi and Cat's Eye and the housekeeper forever, the answer is that it is possible. In some plots of comics, there are indeed some policemen or other characters who have doubts about the true identity of the three sisters, but in the end there is no conclusive evidence to prove their identity.

As for what the thief stole at the end of the animated version imported from China, I'm not sure what it was because you didn't provide enough information. But judging from the plot you provided, the little thief should have sneaked into the police station for some purpose, and Toshi Utsumi at home asked Xiao Tong to help him find it. Finally, my sister and sister looked at Xiaoyan with playful eyes, and Xiaoyan smiled back and decided to face the challenge herself. As for whether Xiao Tong stayed in the Spring Festival Evening or Toshi Utsumi was taken home to sleep, it is uncertain from the plot you provided.

It should be noted that the Japanese anime version introduced in Chinese mainland may be deleted and adapted according to the needs and policies of the China market, so it may be different from the original version. The specific plot and details may vary from version to version, so I can't answer your question accurately. I suggest you check the original comics or related animation materials to get more accurate information.

I hope I can help you. Your adoption is our greatest motivation.