The full story of Dragon Ball Z is about Goku and his friends protecting the Earth from various powerful villains. It starts with Raditz arriving on Earth, revealing Goku's Saiyan heritage. Then there are battles against the Saiyans like Vegeta and Nappa. Later, the threat of Frieza emerges on Namek. Goku transforms into a Super Saiyan for the first time to defeat him. There are also the Androids and Cell arcs which bring new challenges.
The story of Dragon Ball Z is about Goku and his friends protecting the Earth from various threats. There are powerful villains like Vegeta at first who comes to Earth to find the Dragon Balls. Then there are even more dangerous foes such as Frieza. Goku has to constantly train and increase his power level. His Saiyan heritage plays a big role as he can transform into different states like Super Saiyan. The Z - fighters including Piccolo, Krillin, and Gohan also fight side by side with Goku. They face challenges not only from outer space but also from the awakening of ancient evils on Earth.
There are no such inappropriate 'Straight Shota' stories in the official Dragon Ball Z canon. Dragon Ball Z mainly focuses on epic battles, power-ups, and the adventures of Goku and his friends to protect the Earth from various villains.
Dragon Ball Z is both anime and manga. The anime was adapted from the manga and they share the same story and characters, but presented in different mediums.
One alternative is to focus on character backstories. You could write about the early days of Piccolo, how he came to be the way he is. Another option is to do crossovers with other non - sexual universes. Maybe a story where the Dragon Ball Z characters meet characters from a magical anime world and they have to work together to solve a problem. Also, you can write about the relationships between the characters in a platonic way, like the deepening of the friendship between Gohan and Krillin.
A Kryptonian in the Dragon Ball Z universe could potentially be a very powerful addition. Their natural abilities like super strength, flight, and heat vision could make them a force to be reckoned with. However, they would also face challenges as the Dragon Ball Z world has its own power scale with ki-based powers. They might have to adapt to the different fighting styles and power sources. Maybe they could learn to use ki in addition to their Kryptonian powers, or they could find a way to combine the two in unique ways.
The story of Dragon Ball Z Kai follows Goku and his friends as they defend the Earth from various powerful threats. It includes battles against villains like Frieza, Cell, and Majin Buu. Goku, a Saiyan, constantly trains to become stronger and uses his martial arts skills and special abilities like the Kamehameha wave.