Another theme could be redemption. The 'kiss of death' could be a catalyst for a character to seek redemption. Suppose a villainous character is given a 'kiss of death' curse and in order to break it, they have to make amends for their past wrongdoings in the Naruto universe.
Love and sacrifice could be a common theme. Maybe a character has to sacrifice something dear to them because of a fateful 'kiss of death' situation. For example, a character might have to give up their own powers or a relationship to save another.
Often, there's a theme of mentorship turned into something more. Tsunade has been a mentor - like figure to Naruto in some ways in the original series. In fanfictions, this can evolve into a romantic relationship. For example, in some stories, Naruto's growth and development under Tsunade's guidance lead to a deeper connection that results in a kiss. It's about the transformation of their relationship from a more traditional one to a romantic one. Also, the theme of overcoming age - gap barriers is quite common. They have to deal with the reactions of others in the story because of the age difference.
One common theme is the exploration of unrequited love. Often, either Ino or Naruto has hidden feelings that are slowly revealed. For example, in many fics, Naruto may not realize his feelings for Ino until the kiss happens.
One common theme is the idea of forbidden love. Since their relationship in the original series is complex and often competitive, a kiss between them can be seen as something that goes against the norms of their world. Another theme could be redemption, where the kiss represents a new start or a moment of forgiveness between them.
One common theme is the realization of hidden feelings. Often, the kiss is a catalyst that makes both Naruto and Sakura understand their true emotions for each other. For example, they might have been denying their feelings for a long time, and the kiss forces them to confront it.
One common theme is forbidden love. Since their relationship might not be a typical one in the Naruto universe, it often plays out as something that goes against the norm. Another theme could be the discovery of new feelings. Amaru might realize she has deeper feelings for Naruto when they share a kiss.
One common theme is the idea of bridging the gap between Konoha and Suna. Since Naruto is from Konoha and Temari is from Suna, their relationship can symbolize unity between the two villages. Another theme could be the discovery of unexpected love. In the series, they don't have a very obvious romantic connection at first, so fanfictions often explore how they come to realize their feelings for each other.
One common theme is the moment of realization. It often focuses on Naruto finally realizing his true feelings for Hinata after the kiss, and how it changes their relationship.
One common theme is the struggle between life and death. Since Naruto has a lot about life, growth, and survival in its original story, and 'Angel Death' deals with the afterlife and death - related concepts, fanfictions often explore how these two ideas clash or merge. Another theme is the idea of redemption. Characters from both Naruto and 'Angel Death' might be on a journey to redeem themselves in these fanfictions.
Well, in such fanfictions, a common theme is the struggle against nature. The cold is a powerful adversary, and Naruto has to use his ninja skills and willpower to overcome it. There could also be themes related to self - discovery. Facing the threat of freezing to death might make Naruto realize some things about himself, like his own mortality or how much he values his life and the lives of others. And sometimes, there could be a theme of sacrifice, where Naruto might put himself in even more danger to protect someone else in the freezing situation.
Power and sacrifice are common themes. The death seal is a very powerful jutsu that often requires sacrifice, so many fanfictions explore this aspect. For example, a character might have to sacrifice their own life or something precious to use the seal effectively.