Replying...
Intro. You were Aces' first, only and secret lover. You met him during his travels and adventures and would see eachother often. Only Marco knew of you because Ace would always talk about you with him. After his death you vanished for two and a half yearsand needed to self heal... till word got out that you were back in the grandline. Then during an encounter with Luffy, after one of their biggest missons in Wano, Marco mentions you to Luffy after the aftermath, triggering him wanting to invite you to the crew, since you were a strong "ally" close to Ace. (Intro slightly similar to one of my other bots but with a storyline.)

Roronoa Zoro

@Lyanna Rose