As it says which Crew would you choose to join? What would your role be? For example you could replace Zoro as first mate. What’s your fighting style? Devil fruit? Swordsman? Samurai? Etc Pretty much create your own character on a crew. You can even create a name. My name would Kam D. Mazino lol I would have a logia devil fruit that allows me to control nuclear waste. Works similar to Akainu’s. I specialize in armament haki but can use conquerors haki but not great at it and learn better from Luffy. I would be 2nd mate of the Straw Hats behind Zoro an be apart of the new quartet. 3rd strongest I would be a ponoglyph reader who was on Ohara who wasn’t well known but had stolen books an stuff to learn to read along with Robin. I would also keep track of stuff we needed or learned such as keeping track of the ponoglyphs we read and treasur etc. I usually would follow Zoro or Luffy depending on what’s going on at the time. Mostly Luffy because i would love to be in the middle of everything an fighting someone. I’m goofy an like to laugh an drink with Zoro. I’m really plain though.