(Their first date)

I think that Gundham and Hajime's first date would be at an animal cafe or they'll stay inside and watch tons of movies with each other. Eventually they'll go out when Gundham feels comfortable going out.

(How they tell people that they're dating)

I think that everyone would find out by how Gundham interacts with Hajime, or Gundham would make Hajime wear some of his scarfs when they go out to show to people that he's already taken by someone.

(If one of them is the mastermind)

I think if Gundham was the mastermind then I think that Hajime would feel a tiny bit betrayed and he then he would feel despair, I think that he'll question Gundham's backstory to see if it was actually true. If Gundham wasn't revealed yet, I think Hajime would do his best to defend him, saying stuff like "He's dead, we all saw him die" and "He's not the mastermind if he was then why would he call me his singularity?", but in the end he'll finally accept that Gundhams the mastermind. I think after Gundham's actually executed, Hajime would question his sanity.

Well Hajime was technically the mastermind but technically not, but if was an 'He knew that he was Izuru and was the mastermind' AU then I think that Gundham would be betrayed and he would feel hurt that the person that he dearly loved was the mastermind. I think before he's revealed, Gundham would try and find every excuse for them to think that Hajime isn't the mastermind. I think after he's executed for being the mastermind, Gundham would always go to where the pods are at and would wait for Hajime to wake up so they could be together again.

But if it's the original story then I think that Gundham would forgive him because he would reason with himself saying that 'My prince only did those things when he was under the influence of the witch Junko and he wasn't at control of his body', I think Gundham would get mad if anyone would still be mad at Hajime.

(Phone contact names)

I think Hajime's name in Gundham's contacts would be 'my dark prince/ my singularity'

Gundham's name in Hajime's contact would be my dark king/ beloved Gundham or hamster boyfriend lover🐹<3 or hamster partner.

(How they would meet)

If it's like an non despair AU, then I think Chiaki would introduce him to her classmates and everyone would get along with Hajime. I think Gundham at first would be kinda cautious around him at first but after a while he'll let his guard down and he will ask him to hang out.

But if it's the despair AU then they'll meet during their remnant state, Gundham would be cautious of Hajime at first but due to the convincing of Junko and Chiaki, he'll accept him

(One of them is sick)

If Hajime got sick, I think Gundham would give him soup and would bring some animals to help him feel better. He would give him medicine and I think eventually they'll both be sick because Gundham would be like 'I need to always stay with my prince to cure this sickness'.

If Gundham got sick, I then Hajime would do everything to make him feel better, he'll give Gundham cuddles if he needs them, and would bring soup and medicine for him. I think he'll also eventually get sick because Gundham would always want his affection.

(How they'll confess that they like each other)

If Gundham confess then I think that Gundham would confess is that he'll send his devas to led Hajime to where he is and Gundham would give him flowers or animals.

If Hajime was the one to confess then I think that he'll write Gundham an poem or try to speak how Gundham could understand him that he's trying to confess to him.

(What they will do if the other one is sad)

I think that if Hajime was sad that Gundham would do everything that will try and make him happy. Gundham would probably cuddle with him to make him feel better.

If Gundham is sad I think Hajime would give him space if he wants it, Hajime would show Gundham with love and affection if he wants it.

(If one of them is the victim)

I think if Hajime was an victim, I think Gundham would threaten everyone to see who did it. Gundham would probably try and revive Hajime but he would fail, Gundham would probably attack the blackened once they're revealed.

If Gundham was an victim, I think Hajime would panic a little and he'll feel very depressed after the trial. Hajime would probably have more of an temper during the trial. Hajime would send the blackened an glare once they're revealed.

(If one of them is the blackened)

I think if Hajime was the blackened, depending on how the crime was committed, I think Gundham would keep quiet about the murder and would defend him if Hajime is accused, Gundham would mourn Hajime after his execution, Gundham would 'talk' to Hajime and no one would tell him that Hajime's dead.

Gundham was already an blackened but I think that if Hajime found out, he'll keep quiet, Nagito might notice and he would call him out, Gundham would admit being the culprit, Hajime might try and act like Gundham after his execution and no one has the heart to tell him to stop.

Why I added 'due to the convincing of Junko and CHIAKI' is because Chiaki didn't die{In my AU} and she introduced Hajime before and she noticed that Hajime had caught feelings for him so when she found out that Hajime took the Izuru Kamakura project, she forced Izuru back into the pod to bring back Hajime so he would be the person to experience despair first hand