Sakura
Sakura calmed down somewhat on noticing the apologetic smile Irisviel had given her. It was obvious that Irisviel had not wanted to upset her and was unhappy that she had done so. And, she could understand that the issue Irisviel was dealing with needed to take priority right now. If she messed this up, she could end up forfeiting her very soul. And, whilst Togan had claimed he wanted nothing in return for the contract, his previous actions showed that he could not necessarily be trusted.
As a result, Sakura allowed Irisviel to negotiate the contract without interruption. She would, of course, intervene if she saw anything untoward occurring, she did not wish for Irisviel to forfeit her soul because she had failed to speak up, but aside from that she would say nothing.
Sakura listened as Irisviel discussed the details with the demon. Fortunately, she seemed to be on top of the potential issues, and treated the demon's claims of honestly with a healthy amount of scepticism, demanding that he serve her unconditionally, never harm her or anyone she cared for and never wilfully misinterpret her statements for his own gain. She did, however, give the demon a somewhat angry look when he started to berate Irisviel about not assuming he was honest. To her, that seemed like a perfectly fair thing to worry about, given the stakes if she got it wrong.
She continued to listen as the two discussed the situation, Togan accepting Irisviel's conditions without complaint, before Irisviel offered him her hand, allowing him to make the contract. He took the hand and bit down on it. Sakura winced but, to her surprise, Irisviel showed no signs of pain. Instead, she let out an orgasmic gasp.
Did she just cum? Sakura thought, barely supressing a chuckle. Well, I guess it's not unusual for magical contracts to have a sexual element to them....
Looking at the still-panting Irisviel, Sakura noticed a small red gem appearing at the location of the bite wound.
Hmm, odd..., she thought. Is that connected to the contract?
Togan explained the situation to Irisviel, telling her that the contract had not yet been completed, but merely set in motion. He did, however, suggest that Irisviel should rest, and also that she should eat, which was something Sakura could definitely get behind.
I'll have to be careful not to do anything to cause her stress right now, she thought, thinking back to what had happened previously.
Then, Togan suggested treating them to a banquet. Sakura, still very hungry, thought that sounded like a great idea.
"That sounds like a good idea to me, I'm starving", she said with a smile.