>>2466903see, now this is a kind of puzzly kind of password that i think is better worth asking about instead of something that is like "id number of pic/video" or "name of character in blahblah"
this is a vtuber who draws and animates, i just learned this after investigating the password
the password is asking for a certain fish that she draws
and after skimming through, i found this to be the answer, as i just tested it, it's kind of a pun with "usagi" (rabbit) and (o)sakana, which refers to fish with the o prefix honorific