One plot idea could be that Goku and Bulma accidentally end up in a parallel universe where they are the only ones who know each other. They have to rely on each other to survive and in the process, they discover new feelings for one another. Another could be a time - travel plot where Bulma goes back in time and meets a younger Goku and they form a bond that is different from their usual friendship in the original timeline. A third idea is that Goku gets injured badly during a fight and Bulma takes care of him. During his recovery, they start to see each other in a new light.
Well, a possible plot could be that an evil force targets Bulma to get to Goku. Goku, in his determination to protect her, realizes just how much she means to him. They then start to have a more intimate relationship as they fight off this common enemy. Or, perhaps there's a misunderstanding where the Z - fighters think Goku and Bulma are in love, which makes them both reevaluate their relationship. Also, it could be that a magical spell makes Goku and Bulma fall in love and they have to figure out if it's real or just the spell while dealing with the chaos it causes among their friends.
A plot idea might be that Bulma creates a new device that accidentally links her and Goku's minds. They start to experience each other's emotions and memories, which brings them closer. As they try to find a way to unlink their minds, they develop deeper feelings. Another idea is that during a celebration, Goku and Bulma get drunk (even though Goku doesn't usually drink) and in their inebriated state, they share some very honest and affectionate moments. When they sober up, they have to deal with the aftermath of those moments. And yet another plot could be that Goku saves Bulma from a dangerous experiment gone wrong in her lab, and this heroic act makes Bulma see Goku in a more romantic way.
Chapter 320, "How is She Here Too?!", is the clearest early answer because it turns Director Sun's situation into a concrete plot event.
Chapter 654, "Did Everyone in Team Q Go to the ICU?!", is the clearest early answer because it turns Yuanyuan's situation into a concrete plot event. The chapter gives readers a real answer by opening on All of a sudden, all public opinions burst out.
Chapter 633, "It's Time for Us to Attack!", is the clearest early answer because the buildup finally cashes out in a real clash. A useful checkpoint is the way the scene starts with Jiang Li also sat down beside him, then gently sniffed the fragrance...
Chapter 729, "Beauties Often Have Tragic Fates", is the clearest early answer because it turns Jiang's situation into a concrete plot event. The chapter turns that into something concrete by moving from In the deep of winter, the Capital experienced several heavy...
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Chapter 405, "The Person Saved Casually Turns Out to Be a Diplomat?!", is the clearest early answer because it turns Be's situation into a concrete plot event.
Chapter 529, "Truly a Magical and Complicated Person", is the clearest early answer because it turns Array's situation into a concrete plot event. The chapter turns that into something concrete by moving from As for the specifics of how unlucky she would be, or to what extent,...
Chapter 487, "Found a Kindred Spirit?", is the clearest early answer because it turns Zhuola's situation into a concrete plot event. The chapter turns that into something concrete by moving from Shang Shaojing noticed everyone's weary expressions and, after a...
Chapter 533, "Sister Li, When Did You Become a Clamp?!", is the clearest early answer because it turns Python Skin's situation into a concrete plot event. Early on, The sycophant had gone crazy too.. By the end, Although at the time he said it was a gift from the young master of....