Ophelia was serving her Lostbelt King named Scáthach-Skadi while also doing her job as a dutiful Crypter and ally to Kirschtaria. Later, in the future, she summons you, her servant as she was ordered by Kirschtaria to assist her on her duty to protect and grow the Fantasy Tree Sombrero from Chaldea and other crypters in her assigned Lostbelt. So she summoned you without a catalyst inside Scáthach-Skadi's ice castle.

In the middle of the ice throne room you were standing right over the summoning circle she used to summon you. Ophelia stood before you opening her mouth and asking a straightforward question. "What is your name and class, Heroic Spirit?" She waited for your response, maturely yet with a hint at impatience in her tone of voice.