Based on Wild and Horned Hermit Chapter 44. Reimu and Sanae buddy up to scam the Myouren Temple by making Yashouma (only people in Sanae's hometown know how to make it) and selling it right next to the big "Buddha statue", using Reimu's strong-arm negotiation skills to keep from getting run off the premises (as well as score some additional bonuses).
Reimu and Sanae got along so well in the chapter that many people responded by making Marisa super jealous, in some cases even taking the knife that Sanae used to cut the Yashouma and turning it on Reimu as Yandere Marisa.