The moment Bulma heard Uchiha Hikaru's voice, flames of anger blazed in her eyes.
"You're shameless! You clearly know I can't beat you." At that moment, Bulma suddenly felt as though he had caught her weakness, leaving her with no chance to escape. She felt utterly stifled.
Uchiha Hikaru merely smiled as he watched the speechless Bulma.
Whether she could beat him or not had nothing to do with their earlier promise. She was obviously trying to weasel out of it, but he had a way to handle this situation.
"Since you're unwilling, I won't force you. Then make it one year."
Uchiha Hikaru said this with apparent displeasure. Naturally, Bulma was overjoyed to hear it and easily slipped free from his grasp.
"Fine, one year." Bulma looked at Uchiha Hikaru like a child, wanting to use this chance to make an agreement with him. That way, even if he wanted to go back on his word, he would not be able to.
"Come on, hook fingers." Bulma watched him cautiously and held out her right hand, as though saying, "Pinky promise—no changing for a hundred years."
Uchiha Hikaru looked at her. She was still living in her childhood, actually playing something like this.
Still, he followed Bulma's request and made a hundred-year pinky promise with her. It even made him feel several years younger.
"Keep researching. Follow me." Geniuses were made through hard work, so he could not slack off either. Back to research.
After a long period of research, Uchiha Hikaru finally developed a Flying Car—a vehicle that could fly through the sky. Of course, Bulma had made the original, but after his improvements, it had become a car that could truly take to the skies. He even renamed the original Flying Car the "motorcycle."
The one he