URGENT: No reporting possible - CO# 1 associated as a child/related object under CO# 10

Hi All,

I've a scenario wherein 'Custom Object 1' associated as a child/related object under 'Custom Object 10'.

Now, I've 2 requirements here as below:

• I want to pull-up a list of such records for CO# 10 wherein CO# 1 records is associated. However I'm not able to do so as even the "CO# 10 Id" field available under CO# 1 field(s) doesn't seems to have any data (it's showing NULL).

• I need to apply JFV function on one of the CO# 1 field which should auto-populate from the same field present in its parent object i.e. CO# 10.

I was referring ERD for Objects relationship in CRM OD though still had a doubt. Is it due to design itself that even though CO# 1 is associated as a child/related object under CO# 10 but still I'm not able to fetch any kind of list / reporting or use any functions like JFV between them?