There could be. Since Naruto has a large and dedicated fan base, and Darksiders also has its own following, some creative fans may have combined the two in fanfiction. However, it might take some time to find as there are tons of fanfictions out there. You can start by using relevant keywords in the search bar of fanfiction platforms.
Yes, there might be. The Naruto and Darksiders universes are both quite popular, and it's not uncommon for fans to create crossover fanfictions. You can try searching on fanfiction - specific websites like FanFiction.net or Archive of Our Own (AO3).
Chapter 340, "Holy Heart Hospital", is the clearest early answer because it turns Li's situation into a concrete plot event. Early on, Wen," Lin Manru said quickly, her face full of gratitude.. By the end, But now, she could fully trust her daughter..
Chapter 409, "I'm Feeling Lucky!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. It opens with Jiang Yan was still arguing with Yu Li with his hands on his hips,...
Chapter 670, "Sister Will Support You", is the clearest early answer because it turns Gu's situation into a concrete plot event. The chapter gives readers a real answer by opening on Jiang Li, sensing that something might have gone wrong, quickly used...
Chapter 575, "The First Time Threatening Someone Feels Quite Marvelous", is the clearest early answer because it turns President Zhao's situation into a concrete plot event.
Chapter 310, "Sister, Eat More", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter gives readers a real answer by opening on Jiang Yan snorted, "Then, Grandpa, you just talk less, so Uncle Three...
Chapter 646, "This person deserves a slap in the face!", is the clearest early answer because it turns Jin Siyue's situation into a concrete plot event. It opens with Jiang Yan: "....." Bloody green tea, get lost! and closes on You won't be at a disadvantage." Zhao Lang's lips curled up a bit,....
Chapter 668, "This is my son, Chen Qijun!", is the clearest early answer because it turns Wen Feifei's situation into a concrete plot event. The chapter gives readers a real answer by opening on The guitarist explained seriously, "This is not just any guitar; it's...
Chapter 233, "Individual, Ten, Hundred, Thousand... Million, Ten Million, Damn!!!", is the clearest early answer because it turns Individual's situation into a concrete plot event. A useful checkpoint is the way the scene starts with [What the hell, what's this about life span ending??
Chapter 614, "Storm Crisis", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Today, the wind on the island was stronger, and for safety reasons,...
Chapter 663, "How Did These Two Start Fighting?!", is the clearest early answer because the buildup finally cashes out in a real clash. A useful checkpoint is the way the scene starts with Jiang Shixu received the message in daylight the next day.