Old Carp's Bizarre Adventure

Well, I just wrote it randomly, and I don't know what I'm writing, but writing novels is really interesting. Just let it go, that's the kind of person I am anyway. Well, in short, there is a high school student named "Ah" and a best friend named "Lao Li". Lao Li has a system that allows him to transform into uncontrollable forms every week. You can also complete tasks or sign in, and achieve achievement professions to obtain forms. It's almost like this every day. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.