By Evan Nachimson Cats, rain and jet lag couldn’t keep this cover model down. Before Yumi Nu landed on the cover of the 2022 SI Swimsuit issue, she was packing her bags, fighting jet lag and braving the Montenegrin rain all in pursuit of the perfect shot. In an exclusive behind-the-scenes video, we see Nu with her bags fully stocked, with Crying in H Mart by Michelle Zauner nestled in her suitcase, ready for the airport. Upon her arrival, the model/musician was paired with fellow SI Swimsuit model Katie Austin for a day of adventure. On a special day-long tour, Nu and Austin taste homemade che…