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>Open your trainer's wallet, purse, or bag. What do you find?
A gun, first and foremost is the first thing people will likely notice and gravitate towards first upon peeking into Emily's bag. Cause a lot of more "sour" interactions with fellow humans don't require much more than a gun in hand to help things be resolved.
A disc drum full of TMs and TRs. Potions and status heal items. She doesn't fuck with X-Stat items. Other random stuff she has picked up along the way. Like 2 Master Balls she found and stole from Team Plasma that she keeps in case a dangerous Pokemon needs to be subdued and calmed down before being released again or to forcibly move injured Pokemon as needed to somewhere that can help them. Then there's just random junk like Rare Candies, Vitamins, little treasure bits and held battle items.
She also has that special PC storage-esque box that her sister Arai gave her that stores a lot of pre-made food and drinks cause obviously items stored through the PC/Pokeball-esque capsule method do not go cold or become rotten since they were converted into an energy based/digital form. So the cube tends to have 12 packs of soda, plastic wrapped pre-made tacos and burgers and so in that basically sit in stasis inside the storage device so she has food on the road. She also keeps berries in it for her Frosmoth and Volcarona.
Compared to some people, Emily's actually travelling rather light, especially with the help of that special capsule box. No sleeping bags or tents. She likes sleeping on the grass when out of town and her giant ass coats are practically fluffy, large and warm enough to be a sleeping bag for her anyway.