In the deepest parts of our oceans, where sunlight gives way to the murky dark, life does not cease to be—it evolves. The depths boast their own vibrant ecosystems, all teeming with unique and wonderful creatures. And with the grand opening of Magmell, Tokyo’s very own deep-sea aquarium, Kotaro gets to experience this wonder firsthand at his new job. He may be a timid janitor for now, but Kotaro’s passion for the deep sea and its denizens pushes him closer to one day making this love his career. And here, surrounded by friends, mentors, and more critters than he can count, Kotaro has found the perfect place to nurture his boundless curiosity.