Here's where every major character ended up on the 4th and final season of 'Sex Education'

In season four, Otis Milburn (Asa Butterfield) is one of the many Moordale students who restart their A-level education at Cavendish College, a new student-led school. Hoping to continue his sex therapy clinic at the new school, Otis is dismayed when he finds out the school already has a therapist, O (Thaddea Graham).

After Otis steals O's customers, they eventually decide to settle their differences by letting the school pick the best counselor.

In the series finale, both Otis and O lose to a third candidate, who immediately quits the role as the sex therapist. However, Otis graciously gives the role to O after discovering how much her sex clinic means to her.

While this is going on, Otis struggles with his long-distance relationship with Maeve Wiley (Emma Mackey), who is currently studying abroad in America.

The pair get into two major conflicts, once while she is in America and again when she returns to the UK and Otis tells her that he slept in the same bed with his ex-girlfriend, Ruby (Mimi Keene). Meanwhile, Otis also has a major fight with his best friend Eric Effiong (Ncuti Gatwa) as they begin to grow apart.

By the end of the season, these three conflicts are resolved after Otis apologizes.

In episode seven, when Maeve decides to return to her studies in America, the pair agree that the best thing for their relationship is to break up. The series ends with Otis reading a heartfelt note left by Maeve about how he helped her open her heart and start trusting people.

At the end of season three, Maeve Wiley gets invited to a writing program in America at Wallace University and this is where we find her in season four. She initially struggles in the class, especially with her tough lecturer Thomas Molloy (Dan Levy).

After he heavily criticizes Maeve and tells her she doesn't have the skill to be a writer, Maeve is discouraged from continuing at the school. This coincides with a call for her to return home because her mother Erin (Anne-Marie Duff) is in the hospital due to a drug overdose.

At the hospital, Maeve and her brother Sean (Edward Bluemel) are told that their mother has passed, and they both deal with their grief differently. While initially Maeve wants to stay in the UK and enroll at Cavendish, after speaking to Otis' mother (Gillian Anderson), she ultimately decides to continue her writing journey in America.

In the series finale, Maeve gets a call from a publisher at the internship program that she failed to get into earlier in the season. Her roommate who got the internship gave the publisher her book "Southchester," which Thomas had criticized earlier in the season. Maeve then confronts Thomas and tells him off for the way he treated her.

In season four, Jean Milburn (Anderson) struggles to juggle looking after her newborn baby Joy, her son Otis, and hosting her new sex therapy radio show. To help with the chaos, Otis calls Jean's wild and irresponsible sister Joanna Franklin (Lisa McGrillis) to help.

The two sisters clash across the season, especially when Jean finds out Joanna is heavily in debt. However, after being open about their pasts, the sisters eventually make up and Jean agrees to pay off the debt.

Jean also struggles with postpartum depression in the season, a diagnosis she refuses to acknowledge until episode five. After accepting help, she is able to get a better handle on her work-life balance, and by the end of the season, she is able to confidently host her sex therapy radio show.

When we last see Jean in the series finale, she is having a conversation with her former fling Dan (Daniel Ings), who is revealed in episode six to be the real father of Joy.

Ola Nyman (Patricia Allison) and her father Jakob Nyman (Mikael Persbrandt) have been a main fixture of "Sex Education" since season one. In season three, Ola and her father move into the Milburn house after discovering that Jakob might be the father of Jean's baby.

However, Jean does a paternity test in the season three finale and discovers Jakob isn't her baby's father. While both Ola and Jakob don't appear in the final season, Otis mentions in the first episode that Jakob and Jean have broken up which explains their departure.

Last year, Allison confirmed on the UK Capital FM radio show "Breakfast with Yinka and Shayna Marie" that she wouldn't be returning for the fourth season.

"I absolutely have loved being on 'Sex Education' so, so much," Allison said. "I'm so sorry to have to break that to you guys. But some other opportunities have come up. I've been doing it for three years, and I've genuinely loved it so much."

Allison was not the only actor to announce their departure in advance. Tanya Reynolds, who played Ola's girlfriend Lily, told Radio Times she was also not returning.

"It's just the natural progression of these shows — when you have such big ensemble casts and so many characters, I think you have to let a few older characters go to make way for newer ones, which is absolutely the right thing, the way it should happen," Reynolds said.

Eric Effiong's main journey in the final season has to do with his faith. While Eric has been out and open for the rest of his life, he was still in the closet at his church and struggled to figure out whether he truly had a place in that community if he could not be honest about himself.

He is forced to make that choice when his mother asks him to get baptized. At first, he is still conflicted. But after having conversations with Abbi (Anthony Lexa) and experiencing numerous random signs from God (played by Jodie Turner-Smith), he decides to be baptized in the season finale.

However, when the moment comes, he decides to come out of the closet and says he won't get baptized if his church doesn't accept him. At the time, only his mother accepted him.

He later finds out from God that this was what the signs were pointing to all along. At the fundraising party at Cavendish, the pastor of the church apologizes and says he wants Eric's advice to help make the church more welcoming to people like Eric.

Eric then tells Otis that he wants to become a pastor.

Adam Groff (Connor Swindells) is the only Moordale student who does not return to school. Instead, he signs up for an apprenticeship to work on a farm, despite having no idea about horses or driving.

Across season four, he learns how to drive while connecting with his father (Alistair Petrie) and learns how to ride horses with his boss. Also, after finding out that his father and mother (Samantha Spiro) are sleeping together again after their separation, Adam finally confronts his father about all the abuse he's received over the years in episode seven.

In the series finale, the pair make amends and Adam teaches him how to ride a horse. Adam also comes out as bisexual to his boss and she asks him out on a date.

In season two, Aimee Gibbs (Aimee Lou Wood) is sexually assaulted by a man on the bus and has been dealing with the trauma of the incident since then. In the final season, she joins an art class at Cavendish and learns through Isaac (George Robinson), Maeve's ex, how she can use art to share her feelings.

Throughout the season, Aimee struggles to figure out her final project as the pair become friends. When they start to have romantic feelings for each other, Aimee shuts it down to not cross a boundary with Maeve. In episode seven, Maeve finally agrees that the pair can date.

In the series finale, Aimee decides to use art to overcome her trauma, taking pictures of herself in the jeans she was sexually assaulted in before burning them in front of a bus stop. She then goes back to Isaac to show them and the pair make out.

Early in season four, we learn that Ruby Matthews (Mimi Keene) is the only member of the Moordale popular group to go to Cavendish.

Hence, in season four, Ruby attempts to break into the in-crowd of Cavendish: Aisha (Alexandra James), Abbi (Lexa), and Roman (Felix Mufti). This doesn't go exactly to plan so instead she tries to help Otis win the sex therapist voting competition as a way to get in with the cool crowd.

The pair get close, but just as they become friends, Maeve returns and Otis shuns her. We also learn during episode three that Ruby was bullied when she was younger, which was made worse by O.

In episode seven, Ruby exposes O out of revenge. But after they make amends in the series finale, Ruby defends her in front of the entire school when they try to jeer her off the stage. This moment of honesty manages to finally get Ruby into the popular group.

While we don't see Anwar (Chaneil Kular) or Olivia (Simone Ashley), we learn through Ruby in episode three that they have made new friends in their new school.

While Kular has not addressed his appearance, Ashley was asked about her appearance in the show last year after her successful rise in "Bridgerton" season two.

She said on the ITV "This Morning" show: "I get asked that all the time. No, I'm a 'Bridgerton' girl now."

At the start of season four, Jackson Marchetti (Kedar Williams-Sterling) is still reeling from being dumped by Cal (Dua Saleh). However, in episode two, he discovers a lump in his genitalia area, causing him to spiral.

In episode six, Jackson discovers he doesn't have cancer, but when asked about his family history, he becomes set on finding his sperm donor. Since his parents are against finding it, he goes behind their backs in the season finale to find the sperm donor, who immediately tells Jackson to leave.

When he confronts his mothers, Jackson discovers that he was actually born through an affair between his mother Roz (Sharon Duncan-Brewster) and the man he'd thought was his sperm donor, who had his own family at the time.

However, Roz met Sofia (Hannah Waddingham) while she was reeling from being shunned by her ex. The pair decided to keep Jackson's origins a secret after his father also rejected Jackson. Jackson is first upset by this and storms out, but by the end of the episode, he reconciles with his parents.

When Viv Odusanya (Chineye Ezeudu) joins Cavendish, she almost immediately falls for her classmate Beau (Reda Elazouar). She, at first, tries to not date him to focus on work but eventually opens up to him and their pair begin dating.

However, during the relationship, Beau starts to be emotionally abusive and controlling, always questioning her when she talks to other men, especially her best friend Jackson. This comes to a head in episode seven, when he grabs hard onto her and won't let her go to her exam.

In the series finale, after getting advice from Jackson, Isaac, and Aimee, she breaks up with Beau and threatens to report him if he continues to contact her.

In the final season, Cal Bowman is struggling with their transition. At first, they struggle with becoming more horny after using testosterone. However, after getting their period during sex with Aisha, Cal struggles even more with their dysphoria. Cal considers trying to get their top surgery but after realizing how much it costs, their mental health declines even more.

In the series finale, Cal runs away from home, causing the whole school to search for them. Eric, being led by God, and Jackson eventually find Cal on a cliff where they look like they are considering taking their life.

Eric and Jackson both talk Cal down, explaining how much everyone cares about them. Aisha later tells Cal that the school will use the fundraiser to pay for their top surgery.

Cal is last seen in the finale cuddling in bed with their mother (Andi Osho).

Throughout season four, we learn that Roman, Abbi, and Aisha have some conflict underneath the surface. Aisha is annoyed with Abbi for always being positive, meanwhile Roman and Abbi have had intimacy problems since Abbi began living with Roman.

In the series finale, O and Otis finally confront the three about it and Abbi explains that she has had a hard time with saying negative things since she was kicked out of her home by her parents. The trio decide to be more honest with each other.

Of course, with Moordale being closed, we do not see much of the fan-favorite teachers, Emily Sands (Rakhee Thakrar) and Colin Hendricks (Jim Howick). However, in episode six, Emily and Colin are invited by Aimee to Maeve's mother's funeral.

At the funeral, Colin performs the song "With or Without You" by U2 when the music stops working during the ceremony.

At the end of the funeral, they talk to Maeve and explain that Colin is teaching at another school while Emily went back to university to get her masters degree in literature. She said that Maeve inspired her by getting into the Wallace writing program.