Remus John Lupin was born into a wizarding family in 1960, and his happy and wonderful life was shattered when he was four years old
Since Lupin's father had offended the werewolf Fenrir Greyback, Fenrir broke into Lupin's house on the night of the full moon and bit the young Lupin, causing Lupin to transform into a werewolf
Despite all the methods Lupin's parents have tried, they can't turn Lupin back into an ordinary wizard
Young Lupin was desperate, after all, no wizarding school could accept a werewolf wizard
But fortunately, Lupin met Dumbledore
In order to help Lupin get into school, Dumbledore found someone to plant a beating willow in the school playground and make this beating willow a secret passage to help Lupin go to the screaming shack
That way, when the night of the full moon arrives, Lupin can be separated from the other classmates and go to the Screaming Shack alone to transform without hurting the other classmates
On the full night of each month, after Lupin's transformation, his sense of autonomy will become very blurred, and people will become very cruel
Dumbledore used the noise and screams heard by the villagers near the Screaming Shack to make the Screaming Shack a terrifying place where beasts of prey were infested, guiding people away from the Screaming Shack
In this way, while protecting Lupin, he also protected others
While attending Hogwarts, Lupin became good friends with James Potter, Blake, and Peter, and formed the Four Marauders
The sensitive Lupin, fearing that his friends would stay away from him when he learned of his werewolf identity, deliberately concealed his werewolf identity in front of his friends
Whenever the moon night, Lupin would always make up all kinds of excuses, away from the three of them, and go to beat the willow himself
But over time, attentive friends discover Lupin's werewolf identity
To Lupin's surprise, instead of abandoning themselves, the three of them began to study the Animagus, wanting to accompany themselves in animal form to transform into werewolves
With the help and encouragement of his friends, Lupin became more and more cheerful and confident
Later, Lupin is chosen by Dumbledore as the prefect and begins to restrain Jaime and Sirius's mischievous behavior
Lupin knew that Jaime's bullying of Snape was wrong, but he never dared to tell Jaime about it
Maybe it's the fear of losing a few friends, or maybe it's just a simple lack of courage
But this sense of inaction and criminality made Lupin very tormented, and even became a problem for Lupin's life
One night in the sixth grade, Snape followed Lupin into The Willow under sirius' guidance in order to find out the truth about Lupin's trip to hit Willow
But to everyone's surprise, Lupin, who transformed into a werewolf, has completely lost his mind and directly attacked Snape, who appeared unexpectedly
Fortunately, Jaime arrived just in time to transform into a deer, which saved Snape
At this point, Snape also learns the truth about Lupin's werewolf identity and becomes even more disgusted with these four people
After graduating from Hogwarts, Lupin joined James and others in the Order of the Phoenix, which Dumbledore organized against Voldemort
While Sirius became the secret keeper of the Fierce Faithful Curse to guard the Jameses, Lupin also protected them in the shadows
But after Voldemort found and killed the James, Lupin, like everyone else, mistakenly believed that Sirius had betrayed the James
After the Jameses were sacrificed and Sirius was arrested and imprisoned, Lupin seemed to disappear
No one knows where Lupin has gone or what he has done in those 12 years
Lupin reappears in view after Sirius escapes from Azkaban
At that time, everyone thought that Sirius had escaped from Azkaban to hurt Harry, and Lupin was no exception
So, he came to Hogwarts to teach, wanting to secretly protect Harry
While teaching, Lupin used Snape's wolf poison potion to suppress his own metamorphosis, allowing him to stay sane on the night of the full moon so that he wouldn't hurt other students
For his own reasons, Lupin, who knew sirius was Animagus and knew he could turn into an animal and enter the school, did not tell Dumbledore about it
Lupin fears that Dumbledore will learn of his behavior in his youth (wandering around the school after transforming into James and the others), and he fears losing Dumbledore's trust and support, so he has to choose to hide it
(At the end of the day, Lupin is still inferior, he is very afraid of losing everything he has gained)
By mistake, Lupin confiscated from Harry the Marauder's Map they had made as a young man
On the map, Lupin saw not only the footprints of Sirius, but also the footprints of Peter, who should have been killed long ago, which made him very confused
He followed the map's guide to the Screaming Shack, where the truth, which had been sealed for years, finally came out
Witnessed by the Harry trio, Sirius and Lupin reconcile and together subdue Peter, the betrayer who betrayed the Jameses
Persuaded by Harry, Sirius and Lupin decide to hand peter over to the Dementors and clear Sirius
But what I didn't expect was that Tonight's Lupin came too hastily, forgot to drink the wolf poison potion, and transformed into a werewolf who had lost his mind
In order to protect Harry and the three of them, Sirius transforms into a big black dog to fight Lupin, and Peter also takes advantage of the chaos to escape
After this, Lupin felt guilty and voluntarily resigned as a professor
In fact, even if he didn't leave, the parents of the other children would not tolerate him as a werewolf teacher
After leaving Hogwarts, Lupin went into hiding again
Later, he appears in the Order of the Phoenix to help Harry and the others escape the Death Eaters
Until Sirius was hit by the spell and fell into the curtain, Lupin watched his former good friends leave one by one, but he was still powerless
Lonely, Lupin joins the werewolf camp, trying to collect more intelligence as a spy
Lupin, who had been navigating the Werewolf and Harry camps, was physically and mentally exhausted, and when he learned of Dumbledore's death, he looked even more exhausted
This was the first time Harry had seen Lupin lose control of his emotions, and the guide, who had been crucial to Lupin, had also left
I don't know how much pain and regret Lupin should have in his heart
Even more unfortunately, both Lupin and his lover Tonks ended up dying in battle
Lupin's sensitive and inferior life, the only few confidants left him one by one
After all, no one could empathize with his misfortune