Tsuji Nozomi's dog Cook gave birth for the first time to 2 puppies. Unfortunately one of the puppies didn't make it, as it was born with gastroschisis. Tsuji said that everyone was very upset and they took the puppy to the vet but apparently it couldn't be saved. The other puppy seems to be in perfect health, however, and Cook herself is fine, too. https://ameblo.jp/tsuji-nozomi/entry-12335824212.html
Note that the blog entry contains pictures of the first puppy but you can't see anything gross and it's still alive, but just in case...
Nayoko-Kihara wrote:^ Who says they were covering it up? I know people like to assume it was because she has a boyfriend because idols, but having a boyfriend doesn't exclude the possibilty of having emotional and/or mental problems that need to be dealt with.
Considering they cancelled her graduation and fired her, for not following rules, there's little to no chance she didn't have something more than emotional problems.