Juyoon Oh, an ordinary man with a desire for steady employment, transforms after a daring rescue mission to save a child from drowning in the Han River. Looming danger threatens Juyoon, but a benevolent goddess intervenes, presenting him with a unique opportunity for a fresh start. However, he is reborn as an unassuming "brick larva" without any remarkable capabilities. Juyoon resolves to prove himself as a bona fide hero, embarking on a challenging and perilous expedition that will require intense determination and endurance.
