So the plucky sounding leads is primarily shaped by the Envelope.
Go into Massive or Serum, or whatever you are using. Turn on a sine osc. Then look at the envelope, you want to make this look like a sharp point, like the tip of a thin sword. You do that by turning down the Decay all the way, turning down the Sustain all the way, and turning down the Release all the way... And then play around with the Decay until you get the size of the pluck you want.
What this envelope does, it literally shapes the sound. Learn what ADSR means because they are used very often in sound design. Basically, A or Attack determines how fast the note reaches its peak volume. D or Decay determines how long the initial hit remains, S or Sustain determines how long the note is held, and R or Release determines how long the sound remains after the actual note is finished playing. You will see ADSR/envelopes used in other areas of sound design, but it always follows these same principles.
