A plotline could involve a treasure hunt. Luffy is always interested in finding treasure, and Bonney might join him for her own reasons. Along the way, they face rival pirates. As they overcome these obstacles together, their relationship deepens. Maybe they start as rivals for the treasure but end up sharing it and becoming friends or more. This would be a really exciting plotline as it combines the adventure aspect that One Piece is known for with the unique relationship between the two characters.
One possible plotline could be them getting stranded on an uncharted island. They have to rely on each other's skills to survive. Luffy's strength and Bonney's ability to manipulate ages could be crucial in finding food, building shelter, and fighting off any threats on the island.
Chapter 9, "The Qiao Family's business isn't big, but they have quite the audacity", is the clearest early answer because it pushes Mrs into a new phase or setting. The chapter turns that into something concrete by moving from Exactly, the Qiao Family isn't that great either.
Chapter 356, "I announce, Lili is the best of the night!", is the clearest early answer because it turns Shang's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Seeing such a bustling scene, Su Yinwan who had just alighted from...
Chapter 365, "Are You Sick?", is the clearest early answer because it turns Shang Shaojing's situation into a concrete plot event.
Chapter 413, "This Island is Too Strange", is the clearest early answer because it turns Too Strange Guan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Guan Xiong was already a well-known outdoor adventure vlogger on a...
Chapter 331, "Zhu Shun, Huang Tianxi, the Third Cold Yuan Banquet of Great Xia, and Xia Yuzong", is the clearest early answer because it turns Great Xia's situation into a concrete plot event. It opens with Upon hearing the excited sound of his nephew running towards the... and closes on Compared to you, he's far behind!" Zhu Shun wasn't saying this to....
Chapter 347, "Mirror Valley Council, Power Surge, Dajue Temple, Eight Battalion Tournament (Part 3)", is the clearest early answer because it turns Arrow Bamboo Forest's situation into a concrete plot event. It opens with Every time a new division of the army is established at the camp, it... and closes on What Xia Hong mentioned now coincided exactly with his thoughts as he....
Chapter 148, "None are Normal", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. The chapter gives readers a real answer by opening on Exiting the cottage, Director Sun picked up the phone.
Chapter 342, "Founding Ceremony, Childhood Sweethearts, Did the Star-picking Hall Catch Fire?", is the clearest early answer because it turns Songyang Ridge's situation into a concrete plot event. The chapter turns that into something concrete by moving from Great Xia, Year 7, September 9 Time flies, and three more years have... to It was normal that Hong Ye wanted to know the current situation of....
Chapter 331, "Zhu Shun and Huang Tianxi, the 3rd Year Cold Yuan Banquet of Great Xia, and Xia Yuzong (Part 3)", is the clearest early answer because it turns Zhu Shun's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Seeing his sister in such a state, Zhu Shun's heart softened... and follows through with The first floor of the main building was packed with tables, teeming....
Chapter 213, "Shi Xu, You Must Understand How to Balance Meat and Vegetables", is the clearest early answer because it turns Aunt Zhang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Cheng also noticed where Jiang Shixu's attention lay.