We'd like to describe the Story feature as bonus (optional) material that reinforces what you've just learned in the lesson's module. There’s also an introduction of new vocabulary!
What’s also fun about the Story feature is that it boosts your learning power by reviewing the newly-learned material through common conversations with native speakers!
There's also reading and speaking practice so you can follow the native speakers’ dialogue. Overall, the Story feature sums up what you've learned and see how it's applied in real life!