I can't stop thinking about this:
Gihun survives the explosion, barely, but is comatose. Inho has refused to leave his side in the private hospital and is relieved and determined when he finally wakes up. Whatever it takes he is going to find a way to fix things because he's realised he can't lose him too. He confesses everything, he begs forgiveness, literally on his knees.
He weathers it while Gihun rages at him as best as his tired body is able to. He knows that he deserves it and so much worse, and that Gihun needs to get this out, and that it will take time for them to work through this.
Gihun's doctors are annoyed because their patient is too tired and overwhelmed to deal with being this distressed, but at least being stuck on a hospital bed means Gihun has no choice but to hear Inho out once he's too tired to continue raging at him, even if he stubbornly refuses to so much as look at him as Inho opens up about everything, what was real and what wasn't, how Gihun has made him care again.
But as he lies there listening Inho thinks he even sees a twinge of understanding in Gihun's eyes and Inho feels the first bloom of hope he's felt in many years.
He tells Gihun to get some rest and leaves the hospital for the first time since they both arrived. He needs to make plans to care for him, at least while he goes through physical therapy, which even if it goes well should buy them at least a few months of close contact and talking to each other, giving Inho a chance.
He comes back the hospital the next day only to be met with Gihun's fury again, this time more animated now that he's more awake and has fewer drugs in his system. Gihun's covering the same ground from the day before, calling him 'Young-il' even though he's told him his name, his relationship to Junho, everything. But Inho understands that Gihun needs to express himself, and that he might not even remember clearly what was already said yesterday, after all he is freshly out of a coma and still very injured.
He comes back the next day. The same fury. The same points. The EXACT same points. Something is wrong. Inho realises that Gihun doesn't remember him being there the day before, or the one before that. Or anything about the previous two days in general. As far as Gihun's aware he's just woken up and the last thing he remembers is the failed rebellion, Jungbae's death, 'Young-il's' betrayal, and 'dying' during the Sky Squid Game.
Or in other words: 50 First Dates AU but make it angst with Inho caring for a Gihun with severe short term memory loss who remembers everything up to his own fall but can't make any new memories that last longer than a day, and no matter how long passes wakes up every day feeling the anger and grief of the games and Inho's betrayal as fresh as if it were yesterday, because to him it always was.
By some miracle, Gihun survives. Neither Inho or the doctors and nurses at the private hospital he brings Gihun to know HOW he survives but he does.
They take him into the operating room and tell Inho that while Gihun's legs and arms were broken and his spine damaged, he seems to be more or less ok. They won't know what kind of brain damage they're looking at or the extent of it though. They have to wait for Gihun to wake up.
Inho stays by Gihun's side every day. He goes early in the morning and only leaves to sleep at a nearby hotel, praying that Gihun will wake up and that inho can make up for the mistakes he made.
Finally, after 4 months, Gihun FINALLY wakes up. Inho is absolutely ecstatic!
Unfortunately, the doctors make Inho wait one week before he visits Gihun because he's still pretty out of it but as soon as Inho is given the ok, he practically runs to Gihuns room and falls to his knees, hands clasped in front of him.
He tells Gihun EVERYTHING. Everything he did, what his plan was, how long he's been working for the games, EVERYTHING.
Gihun is, of course PISSED OFF. He is absolutely enraged that Inho stalked him for years, that he played with Gihun, that he killed Jungbae, he just starts screaming and screaming at Inho, even trying to hit him.
The doctors and nurses are of course, very mad at Inho, saying Gihun does not need this while recovering but Inho continues to tell his story, even telling Gihun how he got involved with the games and telling him all about how his pregnant wife was real and the reason he even played the games was the save her and how Ilnam gave him the knife and Inho was just doing what needed to be done.
Gihun looks...not happy but Inho can see some sympathy and understanding in his eyes. After a while, the doctors say Gihun needs to rest. Inho says goodbye, happy that Gihun even let Inho kiss his hand and goes back to the hotel.
He immediately stays looking for a house for him and Gihun, one that could accommodate a wheelchair and other things because no one knows if Gihun will ever walk again.
The next day, inho goes back to the hospital and Gihun is of course, still mad. Still throwing stuff at him and he doesn't seem to remember what Inho said yesterday, so Inho tells it to him all over again, thinking it's just the pain meds and the coma that's making Gihun a little scatterbrained.
But it keeps happening. Inho has to tell the story again and again, and again and finally, the doctors tell Inho that Gihun has a very specific type of amnesia-he can no longer make any short-term memories.
Which means, Gihun is relieving the worst day of his life day in and day out because for him, it all happened yesterday and Inho doesn't know what to do. he still wants to take care of Gihun.
Still wants Gihun to be by his side and make up for all the horrible things he did but now, he has to figure out how to take care of Gihun when Gihun wakes up each and every day, thinking that Inho is a monster who killed his best friend and ran a bunch of death games.