Considering both her and Kurama could sense spirit energy, she would have been surprised if he hadn't sensed her coming.

In all honesty, the reaper was rather intrigued to see a different side of Kurama. Yusuke and the others were constantly fighting for their lives and this change was welcomed. It was easy to forget that Yusuke, Kurama and Kuwabara were someone's son, and that they did have to go to school and focus on another future in the Human World. Botan was always focused on paper work and doing her job as a reaper to prepare people for the next phase after living, that she sometimes took the Human World for granted in all its beauty. She didn't spend much time on Earth until she met Yusuke and was sucked into his life and all its complexities. She was not complaining by any means though.

If someone asked her a year ago about her job and the future, she would have never guessed she'd have made friends with the likes of Hiei and Yoko Kurama, as both demons had unsavory reputations. Though she wasn't sure if they were really friends but she hoped to find out more information through her newest mission. Either way, Botan was happy with her life at the moment, especially since the danger was minimal and she could finally breathe easy. Genkai was alive, the tournament was over and everyone could get back to living as they once were. As she tried to remember the names of those she was interacting with, she tried not to think about her small book and the secrets it contained about people and their habits, mannerisms, and most importantly, their death.

When Kurama approached her, she could feel his emerald eyes looking her over. He likely knew if it was an emergency, she wouldn't be so cavalier about her appearance. When he asked her if she was alright, she had to consider what to say to that. Hi there, it's nice to meet you." She said to him. "Oh? You could say that but I've been around Yusuke long enough to know my way around." Of course she didn't go to his school directly but did hang out around him and his friends. "I do need to do some work around here." She confessed to Kurama. "I was actually hoping you might be able to help me." Botan added. 

She glanced around and couldn't sense any demons nearby. Of course if they were high level ones, Rank C or above, they would be easy to detect but to her knowledge, the ones she needed to handle were in the E and D rank. Obviously for someone like Kurama or Yusuke, handling them would be an easy task but Botan wanted to learn how to fight on her own, just in case. And she also needed to secretly evaluate the other three boys. Hiei would be the hardest so she was trying to leave him until the very last, if possible. Looking around, she noticed many females looking at the red haired genius. "I'm not surprised you have a lot of admirers." She teased, changing the topic so that if anyone did overhear them, it wouldn't sound questionable.