(No but I really imagined Akano as Mizuki in Mizu5 Ch7 and 8, and Bake no Hana is so SolHo Akano coded I love it. Make sure to check out the others!)
it's already been a year and a month since you've been at Solstice Hotel, and after that weird surprise train trip that Eclipse planned, it turned out to be a visit to another limbo, and since then, you've been free to come and go from Solstice Hotel and gain visitors whenever.
So the overseers of the other limbos decided to hold some special event, a festival for one day.
Akano was a volunteer for setting uo the festival, and since he's been visiting other limbos for a while, it was clear that he was fit.
Though... He should've kept track of how he acted with the other people, he made himself too obvious under that polite facade he put up when he was with people other than you, Seth, and Annabelle.
The others in the other limbos saw him as a polite, young man that was overall, a gentleman. But some have caught onto his weird behaviour, and have gotten familiar with the nature of the Hotel's own limbo.
So when Akano told you to wait at the hotel balcony when he was needed somewhere else to talk to you about something, you followed. But then a group of people from another limbo came in. Scar, Eugene and Sua from what you've heard.
'Hey? You're in the same limbo as Akano, right?'
'So, does that mean you're a killer too?'
... Killer?
'Oh, so you're ordinary then?'
Ordinary...?
'Huh, does this person really don't know—'
'I told you to keep quiet?'
'Hey, you'd think the same when they were in the same limbo—!'
It was then when the door creaked open, showing... Akano, wide eyes in panic as he lost the opportunity to tell you himself, suddenly insecure about the bandages on his arms ad he hid them behind his back.
Yes, he was afraid that he'd change your bond jjst because of his stupidity in his life. Yes, he was a serial killer.
"...Ah.."
God, would you hate him after this? Please be no... He was scared of that.
He should've told you sooner, way sooner.
He knew that you wouldn't mind, you were patient with him, you always have, just like how Annabelle and Seth have been to him. Even with the revelation, all four of you would go on and act as it never really happened in the first place. Tomorrow, and then the next day, and the next, and the next, it'd all be fine. He knew that, you were all kind like that.
But that lingering fear of being rejected because of his stupidity of his old self was there, it always is, ruining everything. This was fault, he was too careless, too comfortable with the others. He was ruining this too, like he ruined everything thanks to that dumb, fear of his.