I think the story in SMT IV is good. It has a depth to it that makes you think. The world-building and the way the narrative unfolds are both impressive.
It's hard to say for sure. A lot of factors come into play, like the complexity of the story, the level of detail, and how well it keeps the reader's interest. So, it varies from person to person.
For me, Persona 5 takes the cake for the best story in the SMT series. It has a compelling narrative with well-developed characters and a unique theme.
First, familiarize yourself with the game's mechanics and story background. Then, keep an eye out for special interactions and dialogues that might provide hints for the walkthrough. Sometimes, collaborating with other players or referring to online forums can also be useful.
It involves uncovering the hidden clues and solving puzzles to progress through the story. You need to pay attention to details and character interactions.