One idea could be a story where Valt and Shu are training together for an upcoming big tournament. They face various challenges during their training, like dealing with new and powerful opponents' techniques. As they train side by side, they start to understand each other's strengths and weaknesses better, and their friendship deepens into something more, with a lot of cute and competitive moments along the way.
One great valt x shu fanfic could be about their journey in a new beyblade tournament together. They face tough opponents and their friendship deepens through the challenges.
Another place to search is FanFiction.net. There are many different categories of fanfics, and you can use the search function to specifically look for valt x shu ones. Just make sure to read the tags and descriptions carefully to find the type of story you're interested in.
Maybe Valt loses his memory after a particularly intense Beyblade battle. Shu then has to work hard to help Valt remember their friendship and their shared experiences in the Beyblade world. This could lead to a whole new dynamic in their relationship as Shu is desperate to bring back the old Valt.
A prevalent theme is also the idea of redemption. In some fanfictions, if Shu has gone through some tough times or made mistakes, Valt is often the one to bring him back, and this journey of redemption is intertwined with their relationship development. Also, there are fanfictions that focus on the power of their bond. How their connection gives them an extra boost in their Beyblade battles, not just physically but also mentally, and this bond then blossoms into a romantic relationship.
In a fanfiction, Valt and Fem Shu could be in a situation where they have to rescue their Beyblades from an evil force. Valt would be all ready to charge in head - first, while Fem Shu would be thinking of a strategic plan. Their different personalities would create some interesting dynamics as they work together to save their beloved Beyblades and in the process, become closer friends.
In a fanfiction, Female Shu could be a new transfer student to Valt's school. Valt, being the friendly and enthusiastic beyblader he is, welcomes her. They quickly discover their shared love for beyblading. However, Female Shu has a secret technique she's been developing. Valt, intrigued, tries to learn from her and in the process, they develop a bond that goes beyond just beyblading. They support each other through personal and beyblade - related challenges.
You can try fanfiction platforms like Archive of Our Own (AO3) or FanFiction.net. There are often many dedicated Beyblade Burst fans who write about Shu x Valt on these sites. Just use the search function and type in 'Beyblade Burst Shu x Valt' and you'll likely get a list of relevant fanfictions.
They could be on a journey to find a rare and powerful Beyblade part. Valt's curiosity drives him to seek it out, and Fem Shu joins him because she believes it could give her an edge in competitions. Along the way, they face various challenges and obstacles, such as other bladers who also want the part. They might have to battle these opponents and also solve puzzles to reach their goal.
The plot could be that Female Shu is a prodigy beyblader who has just moved to town. Valt, eager to test his skills against her, challenges her to a battle. She wins easily, which makes Valt determined to improve. He asks her for advice, and she agrees to help him. As they train together, they develop feelings for each other. But then an old enemy of Valt's returns and challenges them both. They have to work together to defeat the enemy and in the process, their relationship deepens.