Takanashi got the new season off to the perfect start in Lillehammer last month denying defending and inaugural World Cup champion Sarah Hendrickson to win the opening event.
Hendrickson exacted revenge next time out in Sochi pushing Takanashi into second before Daniela Iraschko and Coline Mattel shared victory in the third event of the year.
Takanashi was third on that occasion, both events acting as the Olympic test event in Russia, and, with the circuit moving to Austria, she roared back to deny Mattel the win.
Mattel led after round one with a leap of 86.5m producing a total of 116.2 ahead of Maja Vtic and Jessica Jerome with Takanashi in fourth on 114 despite also recording a distance of 86.5m.
However Mattel's margin was not enough to guarantee her victory in round two as Takanashi produced an excellent jump of 91.5m to move into first with an overall total of 241 points.
Takanashi stayed in the lead ahead of Mattel going last courtesy of her first-round effort but her jump of 93m was marked down by the judges and she ended with a total of 238.6.
Equally as impressive as Takanashi was Austrian Iraschko, who ninth after the first round, produced the biggest leap of the second round, 94m, to take third with 235.5 overall.
The win sees Takanashi's overall points total in the World Cup rankings increase to 340 with Mattel second with 266, defending champion Hendrickson third with 252 and Iraschko fourth with 250.