It was a little risky, since Yuki was unsure if they searched through Minene's things before bringing her in, but it was certainly a chance not to waste if it were really possible. Though, seeing how Yuno's Diary was specifically focused on him, Yuki knew that Minene's Diary would have some gimmick to it. "I guess...maybe it would be helpful, I don't remember hearing Yuno say anything about an ownership of a Diary, so only way to find out..." Yuki finally responded quietly after thinking about it. He knew Yuno probably knew at this point, if she checks her entries while being interrogated by Keigo. Yuki knew that Minene's Diary couldn't had been damaged, or else she would had disappeared, so there was a chance her Diary was somewhere around still.