Masakazu looked at the kunoichi when adressed by her, and considered the sealing request, completely failing to note her uncertainty. It struck him that this would have been much easier if she'd asked him really any time before now. Then again, Masa couldn't remember her name, so he couldn't fault her for such a lapse.
It wasn't until after creating a mental list of books, scrolls, and notes he could consult, that Masakazu realized he was going to attempt this job for his compatriot. He wondered if the fact he was a hormonal teen and a young woman was asking for a favor mattered, and decided it probably did. Regardless, the problem-solving ritual of sealing flowers would help keep his mind off their upcoming treason, and the fact he was about to leave his home for a potentially indefinite period.
When the kunoichi finished speaking, Masa considered answering her, but he wanted to hear what Kajiya had to say, being the only person around with any fuuinjutsu knowledge. After that, the youngest conspirator shouted rather more loudly than the room they were in allowed for. Masa looked dubiously at him, openly letting his expression question the proposition of this person employing subtlety in a take-down.
Finally, Masa had the opportunity to politely speak to the young woman. "I can try. But I can't make any promises about the quality of the seals, or of the amount we have time to-"
A knock upstairs interrupted them, and Masa's arms instinctually crossed, hands entering opposite sleeves and contacting scrolls there. While the genjutsu ninja - Masa really would have to learn these people's names, he supposed - made his way upstairs, Masa addressed the group.
"I'm a terrible liar." he said, bluntly, trying to pitch his voice low to keep quiet.