Shes wearing skull necklace like in the future when she tries to match his style. This better be in the future story like the rest of the extra chapters were added
It's definitely a continuation of the two previous extras that involved them being rained on (
72.1 and
73.2), but I feel like they were out having a date when the rain came in. Almost felt like they came out of a place after a meal, potentially, same as that one, but they're definitely not wearing the same outfits as that one. So it's definitely just 72.1, 73.2, and 75.1 here that are part of the same sequence.