New To Editing/Syncing Issue.

I'm currently trying to start an anime reaction channel on Youtube and am new to the in's and out's of editing. I used shotcut to fix this issue with a "ripple across all edits" function but dislike how shotcut wont let me apply borders to the videos (among other things). The image I'm providing shows an intro ive placed on the track followed by my reaction, above my reaction is what I'm reacting to. Those two videos are synced with audio. My problem is if I move my intro forward its inside the anime video briefly. I need help somehow pushing the intro forward without messing things up or syncing the reaction to the video to where the intro dosent overlap into it.
I hoped I worded this right and someone can help me.

No help?