10 Greatest Unsolved Mysteries In Anime

Anime fans can reach the end of a story to remember something that was not covered in the end. A character may have been forgotten. A driving question may not have received an answer. Even classic anime can be haunted by mysteries and there are several reasons why anime leaves something a mystery.

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The production team may have simply forgotten a character or plot thread. Sometimes there were plans, but the series was either rushed or ended too early. Finally, some anime intentionally keeps things ambiguous so that the viewer can imagine the explanation they want. Of course, things can also go unanswered as a joke.

10/10 What is the true purpose of APTX 4869?

Case closed

In Case closedIn fact, the Black Organization is the series’ main antagonist, behind Shinichi’s transformation into Conan. Although it is linked to several crimes, one thing that has never fully come to light is the real purpose of the organization. Likewise, the true purpose of the APTX 4869 – the “poison” that caused Shinichi’s change – is equally vague.

Fans often speculate that Black Organization’s ultimate goal could be to create immortality or even raise the dead. Therefore, it is speculated that Shinichi’s regression was not really an accident, but the intended effect of APTX 4869.

9/10 Where does Queen Serenity come from?

Sailor Moon

In the Sailor Moon manga, Queen Serenity is said to be an “immigrant” to the Moon Kingdom, despite currently being the sovereign ruler. In particular, the crescent moon on her forehead, which occurs naturally on Usagi and Chibiusa, appears to have come from a tiara. Where exactly she comes from remains a mystery.

This is somewhat downplayed in the 90s anime, where Queen Serenity gets less of a focus, but a few questions remain. In particular, the series never explained the identity of Princess Serenity’s father or even had one. Likewise, the 90s anime implied that the Queen’s ghost watches over her daughter, but she never appears after the second storyline.

8/10 Did Yugi or Jaden win the duel in the last episode?

Yu-Gi-Oh! GX

The last episode of Yu-Gi-Oh! GX pits the lead of the series, Jaden, with the original protagonist, Yugi, in a duel. Fans may have been curious to see which would be the better duelist, but the episode decided to end on an ambiguous note.

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The screen goes black before the duel is over. The scene cuts to Jaden in a desert, thanking Yugi in spirit for the duel. Jaden then realizes that the ghosts of Pharaoh and Professor Banner are with him. Jaden then runs through the woods and offers one final “Gotcha!”

7/10 What happened to the animal people on Earth?

Dragon Ball

Early in the Dragon Ball series, the world was filled with anthropomorphic animal characters. This makes sense, as the series is a retelling of Journey to the West, with Oolong in particular based on Zhu Bajie. Even animals that were not anthropomorphic sometimes turn out to be capable of human speech.

with later Dragon Ball submissions, animal characters like these have become less common. However, former main characters such as Oolong and Puar occasionally appear, suggesting that they still exist in some numbers. The animal people also saw a return in Dragon Ball Online.

6/10 When and why did Stocking become a demon?

Pantyhose & stocking with garter belt

The end of the first season of Pantyhose & Stocking with Suspender Belt intentionally parodies anime with ambiguous or open endings. Stocking asks her sister Panty if their weapons, which work on ghosts, can also work on angels. Stocking then proceeds to chop Panty into small cubes and secretly confess to being a demon.

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When exactly Stocking became a demon is never explained, of course, whether it was sometime during the series or even before that. Stocking’s reasons for becoming a demon are also not revealed. As for Panty’s fate, at least the “Geekboy Homecoming” comic shows Brief finally getting her back together.

5/10 What happened to Yokai in the present?


In Inuyasha, Kagome falls into the Bone-Eater’s Well in feudal Japan, which is filled with yokai and liquor. This era is treated as the past of Kagome’s present life. Kagome even meets her classmate’s ancestor, Hōjō. However, there is a surprisingly inexplicable lack of yokai in the present.

Supernatural elements occasionally appear in modern times. The Noh mask is damaged by a Shikon jewel. Kagome also once encountered the ghost of a young child. Because of this, the lack of yokai cannot be explained with magic that “dies” or that this is an alternate reality.

4/10 What was in the GS ball?


In pokemon, the GS Ball is a mysterious Poké Ball that no one can open, even with brute force. The name and design are based on: Pokémon Gold and Silverappear half gold and half silver. In the anime, Ash was tasked with getting Professor Ivy’s ball and taking it to Professor Oak to study.

Despite appearing in several episodes, the series never quite revealed what was inside the GS Ball. Masamitsu Hidaka finally explained in an interview that the GS Ball originally had a Celebi. Initially, Celebi would have been the focus of another storyline. However, when it was decided that the fourth film would focus on Celebi, the earlier plot point was scrapped.

3/10 Is Shun the Makai World Prince?

Tokimeki tonight

Notorious, when? Tokimeki tonight was finishing his anime, the manga was still going on so the production team didn’t want anything too convincing. Shun is considered the long-lost prince of the Makai world, complete with a star-shaped birthmark. However, Shun claims it’s just a bruise and Ranze’s family is banned from the Makai world until they can find the prince.

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Shun’s mother later confirms that the star is indeed a birthmark, but the story really doesn’t reveal any further than that. Shun tries to explain this new information to Ranze, but they are interrupted by Yoko. That’s where the series ends.

2/10 What exactly is Haruhi?

The Melancholy of Haruhi Suzumiya

It is often theorized, even within the series, that the titular heroine of The Melancholy of Haruhi Suzumiya is a literal god, but what Haruhi actually is seems to be a mystery. Koizumi, who presents the theory that she is a god, has doubts herself. Likewise, it can sometimes be unclear whether Haruhi has used her reality-building powers or not.

Regardless of whether she is a god or not, Haruhi is still quite powerful, capable of creating, destroying or even distorting reality, otherwise known as ‘data’. Haruhi can even split a reality in two.

1/10 What’s wrong with Yusuk’s father?

Yu Yu Hakusho

In YuYu HakushoNot much information is given about Yusuke’s father, such as his name or why things didn’t work out between him and Yusuke’s mother, Atsuko. Complicating things is that he does appear in the manga. The brief appearance reveals that he has an on-again, off-again relationship with Atsuko.

Yusuke’s father also seems interested in Yusuke, but Atsuko claims that their son would kill him if he came back. Some fans take the twist that Yusuk is a descendant of Raizen as hinting at his father’s identity. However, the series never really gets into whether it was his mother or his father who had yokai blood.

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