Centers on sea otter brothers Anila and Cocora, who live at a certain aquarium. Anila is the older brother who is cool, but also has a naive side. The younger brother Cocora is a passionate otter who adores his older brother.

Follows the everyday adventures of Koupen-chan and their friends as they enjoy the little things in life.

Ji Miaomiao, a young woman just starting her career, is betrayed by a friend and left with a mountain of debt. While fleeing from ruthless debt collectors, she accidentally falls from a building. On the brink of death, a mysterious figure transforms her into a cat. By a twist of fate, she ends up being adopted—by none other than her own boss, Lu Chengze. Thus begins her strange and magical 100-day life... as a cat.

Oda Akira is the kind of guy who people forget is even there. His unassuming nature pays off, though, when his entire class is swept away to a fantasy world, and he slips easily into his new role as a silent assassin. Between his suspiciously high starting stats and too many details that don't fit, Akira is sure something is wrong. But digging into royal secrets is a dangerous game, and when Akira uncovers an evil scheme, he also makes a powerful enemy—the very king who brought him to this world! With the help of the elven spirit medium Amelia, can he find the power to set things right, and get his revenge?