Kiyoko's heart felt heavy as if blood was overloading her heart. Though she used to be a servant girl, after knowing about her special body she thought she could finally get treated better, at least by the person she loved but his actions before and Yuki's words now damper her.
Of course, Kyukichi didn't want to treat her that way but whenever others treated her like that, he started to take her for granted, without his knowing he felt he was superior to Kiyoko because she always had been kind and obedient to him.
When Yuki said that, Kyukichi didn't talk back because he realized that but Kiyoko felt bad because he didn't respond to Yuki's words.
'Inori, give me recipe for the poison,' Yuki asked.
'No, if you use an antidote now, you will become the culprit,' Inori said.
'Then how should I save him? Hisamoto would definitely not give an antidote. Is there another way?' Yuki asked.