Derek and Lydia

Lydia was attacked by Derek's maternal uncle Peter Hale, whose Bite awoke Lydia's Banshee abilities
Lydia knocked out and dragged Derek to the Hale House to resurrect Peter, though she was controlled by Peter's spirit
Lydia witnessed Derek and Peter kill Jackson, though the latter was reborn as a Werewolf thanks to Lydia
They slowly built a friendship throughout Season 3
Lydia predicted Derek's impending death at the end of Season 4
Derek remains a loyal packmate, friend and mentor to Lydia and the rest of the McCall Pack
Lydia was shocked by Derek's sacrifice to ensure the death of the Nogitsune and attended his memorial service

### Ship Name

Dydia

**The relationship between Evolved Beta Werewolf Derek Hale and Banshee Lydia Martin**

Derek and Lydia did not have much interaction throughout the first season as a result of Derek mentoring the newly-turned Beta Werewolf and Lydia's classmate, Scott McCall, in controlling his new powers to prevent him from exposing Werewolves and the rest of the supernatural community. When the Alpha Werewolf trapped Lydia, Scott and their friends, Allison Argent, Stiles Stilinski and Jackson Whittemore, in the high school, a reluctant Scott lied that Derek was the one spreading chaos throughout Beacon Hills in an effort to protect his friends as much as possible from the supernatural world to which he now belonged. In the night of the Winter formal, Derek's maternal uncle, Peter Hale, who was revealed to be the Alpha Werewolf, attacked and bit Lydia in the lacrosse field, landing her in critical condition that required her to spend several days in the hospital to recover from the trauma.

Derek and Lydia get more interaction in the next season, where Derek suspected Lydia to have turned into a reptilian shapeshifter known as a Kanima, who began killing several members of the 2006 swim team. However, it was soon revealed that Lydia's boyfriend Jackson, who had been bitten by Derek, had become the Kanima because his lack of identity and status as an orphan and adopted child corrupted his transformation and turned him into the rpetilian shapeshifter. Although Derek was determined to put an end to the threat that Jackson represented by killing him, Derek, Scott, Stiles and Lydia followed the plan from the newly-resurrected Peter by having Lydia reach Jackson and remind him of his true identity, allowing him to become a Werewolf-Kanima hybrid.

Afterwards, though Derek was reluctant in trusting Lydia following the fact that she had used him to bring Peter back from the dead, the pair slowly began to develop a camaraderie during the war against the Alpha Pack and the Darach, Jennifer Blake, who identified Lydia as a Banshee, a special woman who had the ability to predict future deaths and events. Derek and Lydia's relationship grew stronger in the second part of Season 3, and Derek became a more kind mentor to the supernatural youths, aiding them in defeating the Oni and the Nogitsune, which resulted in the deaths of Lydia's best friend Allison and boyfriend Aiden Steiner.

The developpment in their friendship became more evident in the beginning of Season 4, when Lydia and the rest of the McCall Pack travaled to Mexico to rescue Derek from the Calavera Family of Hunters and planned to use the money that they stole from Katashi to buy Derek's freedom, only to later learn that he had been kidnapped by his former lover and the newly-resurrected Werejaguar, Kate Argent. Throughout the season, Derek came to learn more about Lydia's family history and discovered that she had inherited her powers from her late paternal grandmother, Lorraine Martin.

Both Lydia and Derek were put in the Deadpool list containing the names of all known and unknown supernaturals, with Lydia being the second-highest target at $20 million and Derek having a price of $15 million in his head, though Derek was eventually removed from the list when he supposedly lost all of his Werewolf powers and was rendered a mundane human. Things became more unnerving when Derek's name was used by Lydia to gain access to the third and last portion of the Deadpool and Lydia broke into Derek's loft one night prior to unleashing a Banshee wail, implying Derek was close to dying.

Fortunately, the McCall Pack members and their allies overcame all obstacles and managed to shut down the Deadpool. Several weeks later, Derek was impaled by one of Kate's Berserkers and succumbed to his wound, like Lydia had predicted. However, he returned to life with his powers restored and gained the rare ability to transform into a true black wolf, allowing him to defeat Kate and her Berserkers. Once all threats had been dealt with, Derek left Beacon Hills and decided to travel with his new girlfriend, Braeden, in search for the Werecoyote assassin Corinne, a.k.a The Desert Wolf.

Derek remained absent for nearly two years until September 2013, when Lydia and the rest of the McCall Pack were at war with Tamora Monroe, Gerard Argent and the army that they had built, in part thanks to the Anuk-ite's fear-inducing powers. Lydia came to have a vision of all of her friends, including Derek, having been petrified into stone by the recently-merged Anuk-ite. Derek and Stiles returned to aid the McCall Pack in the final battle, which ended after the Anuk-ite was turned into stone by its own power, releasing a good portion of the population of Beacon Hills from its influence, and Gerard was slaughtered by his own daughter, Kate. Monroe managed to escape and her army continued to grow in the span of two years, gaining thousands of members from all over the world, Such discovery prompted the McCall Pack members to ally themselves with other supernatural communities and rescue orphaned supernaturals, like the young Beta Werewolf Alec, to stand against the army. By the end of the series, Derek and Lydia are shown to remain good friends and packmates willing to fight for one another.

By the year of 2026, Derek had become the single father to a son named Eli, while Lydia became the director of a company that transformed any kind of sound into a green source of energy in San Francisco. The return of the Nogitsune and his Oni forced Derek and Lydia to reunite with Scott and the rest of their pack to battle the Dark Kitsune once more. Allison, who was recently-resurrected through a ritual performed by Scott, Lydia and Malia, was manipulated by the Nogitsune into killing Derek and Eli but Derek, Scott and their allies fended her off. When the Nogitsune trapped everyone in his illusionary world, Lydia wailed Allison's name in her Banshee voice and restored her best friend's memories, leading her to turn against the Nogitsune and aid her packmates in killing the Oni. However, Jordan Parrish needed help in keeping the Void Kitsune restrained so he could incinerate and destroy him, prompting Derek to sacrifice his life and he allowed himself to be immolated and destroyed along with the Dark Kitsune to save his son and loved ones, leaving all of them, including Lydia, devastated. Days later, Lydia appeared in the Hale residence for Derek's memorial service and listened to Scott's eulogy for his former mentor before continuing her professional career.