In a game where goal-scoring opportunities were far reaching, it was the Nigerian girls that made the most of theirs deep into stoppage time at the Estadio Metropolitano de Techo, Bogota.
Forward, Mary Mkpa could have ended with a brace had she had enough precision.
Despite the early promise by the Falconets, it was the Asians that came close to drawing the first blood on the quarter-hour, but Shukurat Oladipo got one foot to a teasing cross from the right.
Nigeria’s goalkeeper, Shukurat Bakare, almost gifted a goal in the 28th minute when she missed a pull-out, but the South Korean forward could only sky it.
At the other end, Mkpa had a chance of her own but slammed the ball a little too high after a brilliant pass from Rofiat Imuran.
Nigeria was again lucky just before halftime when Korea’s Myeyung rocked the crossbar from a 22-yard free-kick.
At the interval, Sabastine and Amina Bello saw their shots blocked in the opposition box, and substitute Chiamaka Okwuchukwu also came close from a good run on the right but could not make a meal of it.
However, when it looked like the game was heading to a stalemate, Sabastine sliced the ball from the right wing to smack the upright into the back of the net for the winner.
Next up for Chris Danjuma’s side is a clash on Wednesday evening against three-time champions, Germany who beat Venezuela in the other Group D fixture.