Laravel 5.5 query (sub-query) pluck.

Hi, Please, I have:

Laravel v5.5.48

Tables:

• ads
• ad_settings
• special_sections

table: ads (among others):

• id (9)
• title

table: ad_settings (among others):

• id (45)
• ad_id (9)
• is_active

table: special_sections (among others):

• id (1)
• ad_setting_id (45)
• theme

In my controller I have:

$ad = AdSetting::with(["ad" => function($q){
    $q->where('ad_id', '=', 'id');
}])->pluck('ad_id', 'id' );

The above gives me:

Collection {#14946 ▼
  #items: array:14 [▼
    9 => 45
  ]
}

dd($ad) gives me the "ad id" (9) and the "ad_setting id" (45)

I'm struggling to pluck the ad_setting id (45) with the ad title. Do I need another (inner) query?

I'm really confused now, can someone please give some advice. Thank you.