How to create parent-subcategories structure

Supposing you need to create a structure like this:

Men is a parent collection and Summer Set & Winter Set are the children of Men.

In Men collection page, you need filter by children collections.

In Summer Set or Winter Set collection page, you need filter by same-level collection.

STEP 1 Create a filter for Men

Create Filter information

Create Filter Option type Collection with Keep filter option unchanged enabled

STEP 2 Create another filter tree for Summer Set & Winter Set

Create Filter information

Create Filter Option type Collection with Keep filter option unchanged disabled