"Your family has tons of rice, right?"
"Eh? Where did you hear that?"
"Don't they call Kaga 'the million-koku domain'?"
During the Edo period, each han (domain) had an assessment of its wealth, and the koku was the unit of measurement. Kaga domain (carrier Kaga's namesake), the largest, was called the "million-koku domain". (Its holdings totaled around 1,025,000 koku.) "I see. But that means-"
"You guys must have so much rice that you can't even finish it all, right? Umm... can I marry into your family?"
"YES! (didn't say she has a lot of rice)"