"You useless bastard! You're expelled from 'Golden Wind'!"

Zapp Goodfellow, the porter for 'Golden Wind,' one of the continent's foremost adventurer parties, possessing only a storage skill, is stripped of everything and expelled, left with nothing but himself, deep within a high-difficulty dungeon.

He falls into a pitfall that spans multiple levels, but a Spring of Recovery extends his life.

That reprieve is short-lived, however, as he encounters a mighty dragon and prepares for death from its breath, but he manages to escape the peril by storing the breath.

By deftly unleashing the breath from storage and using the preserved water from the Spring of Recovery, he becomes peerless in the deep dungeon, levels up, and reaches a superhuman state.

He continues to dominate even after leaving the dungeon, and though he's asked to rejoin his former party, it's already too late.

He now lives a fun everyday life with a cute cat-eared girl and a horned girl.

Four beautiful adventurer girls, a scantily-clad beauty calling herself the Demon King of the North, and an illusion-wielding fairy also appear, ensuring Zapp's ordeals never cease. (Short Story Arc)

Afterwards, he journeys to the Eastern City-States... (Part 2)

New companions have joined him after enduring harsh battles.

And Zapp is living a slow life? as an adventurer.

Training in martial arts, subjugating monsters, eating delicious food, a fun life? So it seems. (Short Story Arc 2)

And then, someone claiming to be the Emperor of the Empire appears before Zapp...

Through various twists and turns, everything is settled? (Part 3)

And once again, Zapp and his companions are enjoying their laid-back days. (Short Story Arc 3)

And once again, a new trial awaits Zapp...

Part 4 begins!!

For a while, it's more of a mid-arc story.

Part 4 finally resumes. However, I'm currently in a flashback to recall the story.

Amazingly, over 48 million views! Thank you very much.

Former Title: 'The Strongest Porter ~ Expelled from the Useless Hero Party, I Awakened My Storage Skill and Became Unrivaled! Even If Asked to Return to the Party, [It's Too Late]~'

The title has been changed due to the book release.