Large Memory Fragment

There are four key items named "Large memory fragment".
*Large memory fragment (I)--Obtained from the quest Her Memories: Homecoming Queen
*Large memory fragment (II)--Obtained from the quest Her Memories: Of Malign Maladies
*Large memory fragment (III)--Obtained from the quest Her Memories: Operation Cupid
*Large memory fragment (IV)--Obtained from the quest Her Memories: Carnelian Footfalls, Her Memories: Azure Footfalls, or Her Memories: Verdure Footfalls, depending on past nation allegiance.