Jeunghun Wang claimed his second European Tour title in as many weeks following a late collapse from Siddikur Rahman at the Mauritius Open.
Wang became the fourth successive first-time winner on the tour when he triumphed seven days ago at the Trophee Hassan II, but looked set to finish second this time around as overnight leader Siddikur opened up a three-shot advantage with three holes to play.
However, the Bangladeshi - seeking his maiden European Tour triumph - appeared to be affected by nerves as he followed a double bogey at 16 with another dropped shot at the penultimate hole, pushing him back into a share of the lead at five under.
Wang had held his nerve superbly in Morocco last week, prevailing in a play-off courtesy of a third successive birdie, and again rose to the occasion with the pressure on.
A brilliant bunker shot to around three feet enabled the South Korean to birdie 18 for a level-par round of 72 and a six-under total.
Siddikur clipped the edge of the hole with his own pitch, but could not convert the subsequent putt and had to settle for second.
The leading pair were the only players to finish under par, Estanislao Goya (71) and Nicolas Colsaerts (75) some six shots off the pace in a tie for third and Andrew Dodt (76) a stroke further back.
Wang becomes the first player to win in successive weeks on the European Tour since Rory McIlroy triumphed in the 2014 WGC-Bridgestone Invitational and US PGA Championship.