Why did Liu Yichang take kiku?

Liu Yichang took kiku away to avoid suspicion. Judging from the public information of relevant materials, there is still a long way to go to talk about Liu Yichang and kiku. Their only photo was that kiku and his team went to Disney, and he was taken as a big photo. After that, the news fans in the entertainment book couldn't find out what the relationship was, and Liu Yichang took kiku away to avoid suspicion.