They could develop their relationship through shared adventures. For example, when they go on a quest to find a lost artifact. During the journey, they face many difficulties. Mikey makes Shinigami laugh with his silly jokes in tough situations, and Shinigami protects Mikey when he gets in over his head. This way, their friendship deepens into a more trusting and closer relationship.
One idea could be that Mikey and Shinigami team up to solve a mystery in the sewers that involves some strange magical creatures. They use Mikey's fun - loving nature and Shinigami's magic skills to figure things out.
Well, in some fanfictions, the Shinigami might save Naruto by using its special powers to reverse a fatal curse or injury. For example, it could extract a harmful entity that was about to kill Naruto from his body.
Maybe the Shinigami uses its special powers to heal Naruto's severe injuries. For example, it could transfer some of its own spiritual energy to Naruto to revive his fading life force.
In the traditional TMNT universe, male turtles like Leo getting pregnant goes against the biological norms of the franchise. However, in fanfiction, anything can be reimagined. Some fanfiction might use magic or some out - of - the - box concepts to make such a situation possible, but it's not part of the official TMNT lore.
In this fanfiction, the TMNT might escape by first observing their captors' routines. If the Shredder has minions guarding them, they could wait for a shift change or a moment of inattention. Donatello might be able to hack into any security systems if there are any. Also, they could use their knowledge of the sewers to find a way out. Maybe there's a hidden passage that the Shredder doesn't know about. And of course, their ninja skills would come in handy for sneaking past guards and making a quick getaway.
It's a bit of a stretch to call Naruto a Shinigami fanfiction. Naruto has a deep - rooted Japanese cultural influence in terms of its ninja theme, which is quite different from the core concept of Shinigami. However, if we look at some aspects like the idea of a character having some form of power over life and death, there could be a very loose comparison. But overall, Naruto stands on its own as an independent and well - developed story that has been carefully crafted by its creator, not a derivative work based on Shinigami.