Eun-Hae-sangdan Mangnaeadeul

After his brutal death at the sword of a rival head merchant, Seoho Eun finds he’s been given a new opportunity when he reawakens in his younger body, decades earlier! Now armed with years of learned wisdom and first-hand knowledge of future events, the young master is determined to use this chance to right his wrongs, make better choices, and give himself, his guild, and especially his family, everything they deserve!

(Source: Tapas)