Session Zero: Bond Building Edition builds on the foundations laid by the original Session Zero system, and zooms in on the bonds that unite and divide the characters in your world. It includes 52 prompts divided into 4 themes, one for each suit: Emotional bonds, Bonds of obligation, Social bonds, and Historical bonds.
A simple way to use this is to have each player draw a card for the relationship they have with the character to their left, this way each character will end up with 2 bonds, which will add a layer of narrative complexity into your games, and give you fertile ground for exploring in role-play.
Pick up the original Session Zero, and the Session Zero: Worldbuilding edition to round out the set. And while you're at it, your money won't be wasted on any of Meghan's other games.