I'm not entirely sure specifically as it might be a relatively niche or new work. But generally, a web novel related to Gridman could potentially be about the adventures, battles, and the world of Gridman in a written, narrative form.
To find the'ssss gridman web novel', first, check official anime - related websites as sometimes they host or provide links to related novels. Also, search on social media platforms dedicated to anime and web novels. Fans might share information about where to read it. Additionally, search engines can be your friend. Type in the full name of the novel and look for reliable sources that offer it for reading.
Maki in fanfiction usually has a fierce loyalty to her friends, especially Yuta. She is the type to fight for what she believes in. Yuta is sometimes portrayed as being a bit naive in the ways of the world outside his own small circle, but his pure heart makes him endearing. In many stories, their different personalities create an interesting dynamic, like in a story where Maki's boldness gets them into a risky situation and Yuta's calm thinking gets them out.
Well, one way this could work in a fanfiction is that Naruto could use Yuta's powers to enhance his combat abilities. Yuta has some really unique and powerful cursed energy techniques. Naruto might be able to combine his chakra with Yuta's powers, like using the Rasengan with Yuta's cursed energy for a super - powered attack. It could make for some really interesting battles against tough opponents like Madara or Kaguya.