Reo's Sine(?) (+ Square?) Leads [PART 2] (All Day with Music)

Thank you sillius for your completion of my first quest! When the buildup and chorus happens in All Day With Music - Reo (at ~0:45), the sine wave gets layered on with a different waveform (Square?). I would like you to identify the Waveform. You can use the preset from Q1!

The Piece (~0:45):

Preset from Part 1 of the Quest:
https://presetshare.com/p13394 - sillius

Tldr: I think its another waveform?