Do All Side Stories
In between the main story chapters, you’ll occasionally receive text messages from your fellow party members requesting help for a personal problem or dilemma they may be facing. You’ll definitely want to get to these as soon as you can, especially if you want to get the game’s true ending.
Not only that, there are gameplay benefits to completing side stories in Tokyo Mirage Sessions FE Encore as well. Completing a side story for a character often unlocks new Performa, allowing them to get access to more Radiant Unities at the Bloom Palace, which is always helpful.
They can also learn new Ad-Libs this way, which are skills that activate randomly when that party member uses a regular skill in battle. It’s basically a chance for free damage, and you want as many of these as possible.