WorldEnd: What are you doing at the end of the world? Are you busy? Will you save us?

From Dawn Till Dusk (1x5)

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The battle rages on Island-15 when an unknown Beast suddenly emerges. Despite the retreat order being given, Chtholly charges at the monster but is taken aback when the voice of a young girl echoes in her mind... "I'll be waiting, so you had better come back."