The Holy Diary is an item that spawns every 1000 seconds or 15 minutes with a 1 in 4 chance, or 24
It was previously known as Shiny Diary.
Star Platinum > Star Platinum OVA
The World > The World OVA
Killer Queen > Creeper Queen
Yasuo > Project: Yasuo
Tusk Act 4 > Shiny Tusk Act 4