The concept of fate is also a big theme. Time travel in these fanfics often challenges the idea of a set fate. Characters may try to break free from the pre - determined path that they seemed to be on in the original Angel Beats story, which leads to a lot of interesting character development and plot exploration.
One common theme is redemption. Characters often use time travel to correct past mistakes or to save someone they couldn't before. For example, in some fanfics, a character travels back in time to prevent another character's death.
One common theme is the struggle against fate. In Naruto, Naruto himself is constantly fighting against the fate that the village has set for him as a jinchuriki. In Angel Beats, the characters are all dealing with their past traumas and trying to find peace in the afterlife, which is also a form of fighting against their fates.
One common theme could be friendship. In Angel Beats, Shiina has relationships with other characters, and fanfics might explore those friendships in more depth. Another theme could be self - discovery. Shiina's character has her own journey in the anime, and fanfics may expand on that in different ways.
Another theme is the power - up or new abilities. Naruto's already powerful ninja skills can be combined or compared with the abilities of the characters in Angel Beats. It's exciting to see how the characters develop new powers or use their existing ones in new ways in these fanfictions.
One common theme is the idea of justice. Harry often represents the side of good and right, and when he beats Snape, it's like justice is served. For example, if Snape has been unfair to Harry in the original story, the fanfic might show Harry getting revenge in a just way.
One common theme is redemption. When they travel through time, they often get a chance to right past wrongs, like Angel getting a chance to save someone he couldn't in his original timeline. Another theme is the exploration of their relationship. Time travel allows the story to show how their relationship could have developed differently in different time periods. Also, the theme of fate vs. free will is common. They might try to change things in the past, but are constantly faced with the question of whether it's possible or if they are just following a set fate.
One common theme is redemption. Naoi, who has his own issues in the Angel Beats world, often finds redemption through his relationship with Otonashi. Another theme is friendship turning into something deeper. Their bond starts as comrades in the after - life struggle and then evolves into a more complex relationship.
The themes include redemption and acceptance. Many of the characters have some sort of regret or unfinished business from their previous lives. Through their experiences in this after - life world, they gradually come to terms with their pasts and find a way to either redeem themselves or accept what has happened. It also touches on the idea of finding purpose in an otherwise seemingly purposeless existence.
There's a fanfic called 'Time Traveler in Angel Beats World'. In this, a new character enters the Angel Beats universe with the ability to time travel. It adds a whole new layer of complexity to the existing story, as they try to change the fates of the characters. It has some really creative plot twists.
The theme of changing destiny is also quite common. Jin may travel through time with the idea of changing the future of BTS, whether it's achieving greater success or avoiding hardships. This gives the writers a chance to play with different scenarios and outcomes for the group, while also highlighting Jin's significance in BTS's story.
Another theme is self - discovery. Through time travel, Cloud gets to see different versions of himself. He may realize things about his true nature that he was unaware of before. It's like peeling back the layers of his character. In some fanfics, he might discover his real strength or his true feelings for certain characters by seeing his past self interact with them.