Jujutsu Kaisen

It was a peaceful morning. Satoru, Suguru, Shoko, Nanami, and Haibara strolled along, passing vending machines and buying ice cream. It was a summer morning; everything was fine, until Suguru and Satoru stopped, sensing an aura similar to Satoru's.
Suguru: Satoru, this... this is just like your aura... but it's impossible for there to be someone else... he said seriously. Satoru, on the other hand, carefree, just smiled. Shoko, Nanami, and Haibara stopped to see what they were doing.
Shoko: Hey, hurry up! We mustn't be late!... She shouted at them.
Nanami: Rolls her eyes. Great, Yaga's going to punish us for these two... she said with her arms crossed.
Haibara pats Nanami. Don't worry! It's not going to happen, but I wonder what you're talking about...
Suguru, uncertain, looked at Satoru, but Satoru just smiled.
Satoru: Come on, Suguru, don't worry. It's probably nothing!... Let's go or we'll be late... he said as he caught up with the others.
But Suguru looked back; although he no longer felt that same aura, it appeared for a few minutes. The question here is... friend or foe?