Sniff sniff~
The moment Sassu took over Sakura Cherry's body, she immediately scanned the entire American Dome, hoping to find Satoshi's life force. (Sakura Cherry has two identities, herself and Sassu. While Cherry is usually gentle and soft-spoken, Sassu is wild and erratic, almost always causing trouble wherever she goes and pleases.)
It didn't take long before she detected where Satoshi was. And without prior warning to her classmates, she headed alone, rushing through the crowds of people so that she could get to Satoshi's location in record time.
Now that she thought about it, it's been so long since she last saw Hajime. She missed her a lot, evident in her excited expression as she quickened her pace. At the very least, she wanted to be alone with Satoshi, even for a couple of minutes, before their classmates found their whereabouts.