iD L & iD L 15th Anniversary - Unlocking Destinations & Icon Backgrounds

Once your character becomes an adult, you will be able to collect its happy symbols. First three you will obtain by giving it its favorite meals and items, the 4th one appears by its own after 48 hours from the moment your character evolved into an adult.
When you get all 4 happy symbols for your character, this character gets saved in the book icon (first option).
The numbers shown below indicate how many characters you need to obtain (get saved in the book icon) to unlock the certain destination / icon background.




Unlocking destinations:
4 = Henshin Jo
8 = Patchi Onsen
12 = Melody Land
16 = Concert
20 = Waru Cafe
24 = Uranai No Yakata
28 = Gotchi School
32 = Daiou no Shiro (Gotchi King's Castle)

Unlocking icon backgrounds:
8 = Apples

12 = Music Notes
20 = Waru Cafe
32 = Royal






Unlocking destinations:
2 = TAMAX-TV
4 = mobile library
6 = Uratama Town
10 = Mamemame Lab
15 = Makkakka Town
20 = Oyaji Town
25 = Space travel
32 = Gotchi King's Castle 

Unlocking icon backgrounds:
10 = Rainbow Clouds

15 = Red Hearts
25 = Space
32 = Royal





* Source: Tama-Zone + Carleesi Kawaii