Aquarium.

Aqua arrives as the Francois family's new maid, carrying a secret she cannot speak of. The young Master of the house has suffered the same nightmare every night for as long as he can remember: a girl he always ends up quarreling with, always parting with the words I hate you. He does not know who she is. His elder sister has tasked him with guiding and developing the new maid as preparation for one day leading the estate. He finds himself drawn to Aqua immediately, despite an insurmountable divide of social class standing between them. A summer love story about two people from completely different worlds.