In Joseon-era Hanyang, a boy orphaned by false treason becomes Iljimae, the Phantom Thief. Marked by plum blossoms, he steals corrupt ledgers, jade combs, forbidden poems, and red threads to feed the poor and expose tyrants. Mentored by loss and a street orphan, he evades capture until a final rooftop escape. Justice blooms where he strikes; spring arrives early in the hearts of the hungry.