"These math problems are gonna be the death of me!"
Luffy complained to her one day, he had just arrived at her house, still wearing his uniform, and was slumped on the couch.
He's now 17 and she's 24. She's now working as an office worker in a company, while Luffy is graduating from high school. He often visits her in her apartment because she can't come to visit him at school due to her hectic schedule at work.
He feels sorry for the teenager. He knows how much he dislikes studying, but she's always encouraging him and even helping him with his studies. Because no matter how wealthy Luffy's family is, education is still important.