Gen Freeform Exchange

I'd suggest shortening (Jujutsu Kaisen) to (JJK) and choosing only one name for the MDZS characters (e.g. just "Lan Yuan" or "Lan Sizhui") - as long as it's clear what character you're referring to, you don't need to use their official tag on AO3. You're welcome to split into two tags and request both, but your creator will only be matching on one of those two tags so it's up to them if they'd like to include all characters in the work - so I'd suggest picking the characters that are most important to you and mentioning the others in your prompts as optional.