This is set post-war. Everyone except Remus died as per DH. Mrs Weasley and Ron, in their grief, blamed Harry and Hermione for Fred's death. Ginny protested and eventually was disowned. She married Harry, who became an Auror rather than going back to Hogwarts. Ron and Hermione returned to Hogwarts for the final year of teaching, as did Draco, Neville, Luna and Ginny, and they are all effectively in the same year. Remus also returned as DADA teacher. Ron refuses to acknowledge Hermione, let alone talk to her. The war has made her bitter and she is often alone as Ginny spends her free time at home with Harry in Hogsmeade. Luna and Neville married and also live in Hogsmeade.
Hermione stalked through the hallways of Hogwarts, muttering under her breath. She had just had to endure yet another friendship repair attempt courtesy of a well meaning but thoroughly misguided Hogwarts professor. She had been paired with Ron for a class task which simply ended up in them screaming at each other, Hermione setting Ron's hair on fire and him bellowing that it was her fault his brother had died, whereupon she had fled the classroom, forgetting all of her things, as she tried to resist both the urge to cry and to punch Ron square on the nose.
When it had first been suggested she return to Hogwarts by a tentative McGonagall, Hermione had been excited about the prospect of finishing her schooling and having the chance to help rebuild Hogwarts to what it had been like before the war began. Now she was alone, bitter and constantly involved in shouting matches with Ron. Ginny still spoke to her, having been disowned by her mother and banned from the house, but she was only around during classes. She never even stayed for meals; otherwise Ron would draw her into his blameful rants as well as Hermione. Instead the youngest Weasley, now Potter, would simply floo home to her husband and spend the evening there. Not wanting to intrude on their first year of marriage, Hermione opted not to press to visit.
The other students were split between mocking, revering and fearing her, while the professors generally pitied her. McGonagall would invite Hermione back to her office for tea while Remus offered to accompany her to Hogsmeade but Hermione rarely accepted either invitation out of pride. Normally neither professor would extend their role in Hermione's life and include her in their social plans and Hermione wanted them only to do so when they regarded her as an equal, not when they were merely including her out of sympathy.
And so the Golden Trio, as they had been dubbed by the Prophet during their previous years at Hogwarts, had broken apart, leaving Hermione well and truly alone. The only person more alone than her, she mused as she turned on her heel when she realised she was going the wrong way, was Draco Malfoy.
Draco's story was one that had surprised them all, but none more so than Hermione. He had arrived back at Hogwarts while the remainder of the Order were discussing Hogwarts' future. They had heard the crack of apparation just outside the school gates and turned around, wands in hand; ready to greet whoever was causing the gates to creak open. A gasp of surprise had rippled around the group as they saw the white-blond haired cautiously and slowly make his way towards them, his eyes fixed warily on their wands.
"Give me one reason not to hex you" Ron snarled from his mother's side.
Draco balked and scanned the group, his eyes settling on Hermione. "Please," he said in a hoarse voice, "let me explain everything." He went to take a step forward and stumbled. Instinctively Hermione reached out to steady him. With his arm in her hand she was forced to look at him, and it was only then that she noticed the marks on his exposed skin and how much paler he was than she remembered him.
She steadied him and stepped back into the fold of the Order. Her eyes never left him. "Alright" she said slowly "explain away."
And so he had. His father had raised Draco in a way that fully immersed him in his father's prejudices. Any questioning of such values would result in Draco being beaten and locked in his room for days without food. Lucius' reign of horror was broken up sporadically by school but various classmates of Draco's would report back to Lucius regarding Draco's behaviour, and so Draco was not allowed to let the façade slip. His father ridiculed him for being beaten by Hermione in exams and warned him he had better improve or he would have to have a weekend of studying in his bedroom, uninterrupted.
He had been given no choice in the war. Lucius had even threatened Narcissa when Draco dared venture that perhaps they had been misguided in their point of view. The only kindness Draco had been shown in his childhood tended to come from his mother, and so Lucius knew that this would be his son's weakness.
"I can vouch for that" Harry had spoken up when Draco paused, "Narcissa is the only reason I was able to make it out of the forest. She lied and said I was dead, remember?" Several Order members nodded as they recalled Harry's account of the final battle.
Remus turned back from Harry to face Draco, who was standing nervously in front of them, "what happened to Lucius?" He asked, "We could never account for your family after the war. We presumed you had fled the country."
"He's dead" Draco told them flatly "I couldn't stand it anymore."
There was silence as the Order took in what he was implying. Out of the corner of her eye Hermione saw Mrs Weasley well up and Ron turn bright red with rage. "No way!" He yelled, rushing forward and tackling Draco to the ground before any of them could react.
"Ron, stop it!" Ginny yelled, being held back by Harry who was well versed in Ron's violent outbursts.
It was Hermione who stepped forward and pulled Ron away, "don't be ridiculous Ronald" she said scathingly, calmly stepping between her old friend and her old enemy.
Ron growled and ran at Hermione instead. She closed her eyes and braced herself for the impact of him hitting her but found herself being pulled to the side instead and staring at Ron lying on the floor, ropes restraining his limbs and keeping him stuck to the floor.
She looked behind her, assuming she would see Remus or perhaps Harry holding her arm, but was faced with Draco looking back at her almost guiltily. She smiled her thanks as he dropped her arm and stepped back, turning to walk away.
She hadn't intended to do it. But she did it anyway. "Where are you going?" She called out to his swiftly retreating back.
He stopped "I know I'm not wanted. It was a long shot anyway."
"Nobody every said you weren't wanted" Remus said, coming to stand alongside Hermione "the Order has a habit of taking in those often looked down on by others. We were just surprised by your story, that's all." He glanced down at Ron writhing on the ground. "I'm going to take the restraints off now Ron, but if you try and hurt anyone else I will bind you again myself" he warned as he levelled his wand and removed the ropes keeping Ron bound. He immediately sprung up and pointed at Draco "where's your proof?!" He demanded, glaring at Draco.
His mother rushed forward and dragged him back into the group, keeping him firmly pinned to her side.
"Now, Draco" Remus said, turning back to him "we shall have to discuss it as a whole but you must understand that some of them may be wary given the past."
Draco nodded and solemnly turned to face the Order "I'm aware my actions in the past do not show me in a positive light now, but as for proof I do have this," he pulled his shirt over his head and slowly rotated, his arms stretched out so all of his body was visible.
There was stunned silence as the Order took in Draco's torso, or rather the scars that made up his torso. There were old bruises, burns, scabs and a small chunk missing from Draco's left side. "My father's cane wasn't just to hold his wand" Draco said bitterly as he saw their shock.
Ginny pushed Harry aside and stepped up to Draco. Wordlessly she handed him back his shirt and waited for him to button it up. "I believe you" she said, slipping her arm through his and walking him into the group while staring challengingly around her. Nobody else spoke.
"All those in favour of allowing Draco to join us?" McGonagall asked, finally finding her voice. The majority of people raised their hands and Draco looked gratefully at them all. "You will have your own room here Draco," the headmistress told him "Hogwarts will be your home should you wish it." The boy had nodded and followed her into the castle.
And that was how Draco returned to Hogwarts.