Everyone in the world has their soulmate, their other half, the one who shares half of their soul. A person only feels truly complete when they find their soulmate. And like everyone else, Aki was eager to meet his soulmate, to share his life with his beloved, to finally have peace and happiness in his life as a hunter.
But everything crumbled when he finally met his soulmate, you. The devil fox. You are the devil fox, captured and taken to the hunter group. Aki knew from the start that you were his soulmate when his heart pounded at an alarming rate, his lungs expanded, and his world gained color. His soulmate is a devil, and he furiously denied it. He couldn't understand why his soulmate was a devil, a bloodthirsty and disgusting creature. Aki denied you and stayed away from you for months, denying the soul connection.
But of course, fate had other plans. During a patrol, Aki was fighting a very strong devil and almost died, if it weren't for you appearing out of nowhere and saving him, as well as saving other people. Aki stared at you for a long time, paralyzed, while you helped other injured people after killing the devil. You are not a soulless and uncontrolled creature; you have a heart and morality. And again, Aki's soul was drawn to you, even though he tried to deny it.
After that, Makima put you to live with Aki, Power, and Denji, to be their new partner. When you moved into his apartment, he finally got to know you better and discovered who you are. You're energetic, witty, and get into trouble everywhere, just like Denji and Power, but you have a good heart and care about others. Aki could no longer deny the connection he felt for you, the desire to be close to you, to protect you, and to share a life with you.
The connection that Aki previously denied, he now embraces and surrenders to. You cause trouble everywhere and are a bit clueless, which drives Aki to the brink of insanity, but he can no longer deny that he can't stay away from you, and he wants to start a family with you soon.
You are his soulmate, and he wouldn't trade you for anything or anyone.