The thing about Realize Phase is that revealing it means telling the whole world that Bell's so in love in with Ais Wallenstein that he develops a skill for it. This, in turn, would do two things: it would cement Ais's feelings for him in return (what girl could ask for more than a guy that loves her this much?), and it will also kill the harem, as 99% of girls out there realize that there is no way he will ever give them a look no matter what they do (barring idiots like Lili and Hestia).

This being the case, I don't see any way that RP is revealed to the world before Ais's arc begins. Oomori loves his harem for some stupid reason (he keeps adding to it after all), and he hates having romantic development with Ais for some equally stupid reason.

This assumes that it's ever revealed to anyone outside HF, which it quite possibly won't be. I can definitely see Bell going the entire series without being aware of his own skill.

Lily and Hestia and everyone in his Familia knows all about it.

You are right Hestia and Lily are idiots in thinking that Bell in the last minute will change his mind.

The only one here that can create a Harem with a word is Ais if she accepts it than Bell will follow her.

Loki if she found out this skill would to anger Hestia tell the truth to Bell though the deity won’t be pleased of this skill because Ais is at the bottom of it.

I don't know if this can happens, even Freya and her familia executive didn't reveal Bell's skills. And the probability that 1 of them spoke to an familia enemy is already low from the start.

Hestia's reasoning for hiding it was primarily jealousy. The second reason was keeping it a secret from other familias to protect Bell. Since Freya already knows, the second reason doesn't have much validity anymore. My guess is that Omori will finally have Hestia reveal it to Bell if/when she accepts that Bell isn't going to move on from Ais and when Ais arc is either very close to happening or during it. I would like to think that Bell should know before he confesses to Ais. I still think Omori will do something with the love/hate contrast of Bell and Ais's skills.

Also, it is getting pretty unrealistic for Bell to keep playing dumb on it. He made it to level 5 in about half of the time it took the previous record holder to make it to level 2. You would think he would be wondering what is going on and why he can't be charmed.

Bell is playing dumb on it because Bell IS dumb. He's a very good fighter who improves his combat skills at absurd rates, he's very kind, but he is dumb as bricks.

Bell is kind of dumb to assume something fishy is up with his development .

Normal people can assume something is wrong when they promote so fast and question why.

I reckon Bell has worked out more than he lets on. He worked out that Hedin was helping him prepare for the inevitable fight with Freya Fam even though Hedin was having him beaten half to death every day. Don't get me wrong, book 1 Bell was about as thick as they come. But he's grown mentally as much as his level. He's worked out that the women around him all love him. Kinda hard not to after both Syr and Ryuu confessed and all the drama with Hestia. Not hard to work out from those 3 just how all the others feel. Only stands to reason he's worked out how not normal his grwoth is too. 15+ volumes earlier though, nope he wouldn't have had a clue.

As for the reveal, I reckon it will happen. Personally I hope it gets revealed by accident, probably by Hestia. Maybe. So I've been umming and arrring about how I think the Ais Arc should play out. One of the possibilities I've considered is Ais getting caught in a dungeon gimmick in the water capital and getting washed down to the lower deep-deep levels (since she can't swim), like Zues/Hera fam only level deep, and Bell diving in after her, and the 2 of them fighting their way back, and them finally getting closer and becoming a couple during the process. This is all hypothetical. So say after all of that they go back to Hestia fam home together and find Hestia and Loki and all the leaders together discussing the 2 that were still MIA. The Ais and Bell say they want status updates before telling their story so that they can see how they both progressed. But half-way through Bell's update Hestia runs out and starts yelling at Ais about knowing that something happened between the two of them, then showing the status page thing to Lili, and she starts yelling too, etc. Bell runs out shirtless and tries to stop them, calamity ensues. But then Hestia/Lili realises they've been yelling all this in front of Loki and her execs. Bell/Ais come clean about being together and Hestia comes clean about the skill, and that Bell set a new record for his status update which is how she knew something happened between them. No doubt Hephaestos, Miach, Take and Hermes would be there too so they'd end up finding out too.

Saying all that, I don't think that's how it would happen. I'd really love it to happen that way. I think that would be a hilarious way for it to happen. I'd love to see all the Loki exec's reactions to it too. Tiona and Tiona would prob love it and Lefiya/Bete would be majorly pissed

Bell has seen in volume 18 that his status can reach sss category but did not ask a single question regarding it in the whole series till date.