The Returnee Prepares Everything

Se-hun Lee, the blacksmith of humanity’s last desperate expedition force.

He fought the demon gods until the very end, but the result was mutual destruction, and the world ended.

At the moment he took his own life because of that empty ending,

'...What is this.'

He returned to his days as a candidate at Babel, the institute that trains heroes.

Given a chance once more, he will use anything as material if it means making victory happen.

Anything!