ATTN: New watchers... THE LEADS ARE NOT RELATED!

To avoid repetitive questions and for new watchers who are confused/unsure/deliberating/concerned...

The two Leads (LYN and LSY) are NOT biological siblings, they did NOT grow up together (apart from some early years that our FL can't remember much of) and they do NOT share the same parents genetically.

This is not a spoiler as this is revealed early on.