鱼的七秒记忆猫的九天性命
[yú de qī miăo jì yì māo de jiŭ tiān xìng mìng]
This netname juxtaposes two idioms: 'the 7-second memory of a fish', suggesting very short-lived memories; and 'a cat's nine lives', representing toughness and longevity. It expresses a sense of fleeting moments paired with enduring life.