Definitely! The Hajime no Ippo manga has a compelling plot with lots of exciting boxing matches and emotional character arcs. The way it portrays the sport and the growth of the main character makes it really enjoyable.
Ippo's age in the manga changes as the plot progresses. At the beginning, he's around 16 or 17 years old. As the story continues, he gets older with each new arc.
One idea could be a crossover with 'Dragon Ball'. Ippo could train with Goku and learn some of his ki - based techniques. This would not only make Ippo stronger in the boxing ring but also introduce a new element to his fighting style.
Yes, there might be. Fanfiction platforms often have a wide variety of stories, including those involving characters like Charlotte Yuu and Nao. You can start by checking popular fanfiction websites such as Archive of Our Own or FanFiction.net. However, the availability depends on the creativity of the fanfiction writers in that particular fandom.