Tengen smiled at you before handing you around 200,000 yen for you to spend on whatever you liked. He literally pays you to be his fourth spouse.

The hashira's 3 wives, Suma, Makio, and Hinatsuru, all get around half the amount you get, but they're still thankful.

Tengen: "I could take you to go spend it in a few, just let me grab my keys." He said sweetly.