Welcome on board Pixl!
Ok people, as the moment when the first IC topic is posted draws near, I think it's time for me to explain some more detailed stuff about how the IC part will work.
You see, there is something out there. Something whose nature I cannot reveal right now, because it would be a massive spoiler. Because of humans, this something has shattered into 108 pieces, which represent the 108 obstacles on humanity's path towards enlightenment. These 108 shards have been engraved into the 108 Number cards (wait Tomas, aren't there only 107 Number cards? Well, not exactly...), which have scattered everywhere around Heartland. Generally, since the number 108 is a number that signifies sin and temptation, a human coming in contact with such a card will lose their sould to it, being overcome by their own inner darkness the card has the ability to bring out and manipolate. However, should a person display enough fortitude to come to terms with one's inner darkness, accepting it rather than trying to fight it, then it will be possible for that person to overcome the darkness and achieve mastery over the Number card(s), which is what will happen, throughout the story, to those who picked up the Arcana Numbers, when they actually obtain the cards in the story (because yes, when the story starts, you guys will have no Numbers, nobody will, but don't worry, it won't be long before you obtain them...).
But why does all this happen? What is the true nature of these 108 shards? Will they ever be whole again? And should this happen, will it be a good thing or a bad thing? Who is Anna?
It will start as a game, as a "ehi, how about we get together after school and investigate?" someone proposes casually during the first IC topic, but it will sun into a quest, a race against the clock in which you, all of you, will have to find the answers to these questions. Some of you will compromise, giving up their quest for the truth in favor of the power to achieve their immediate goals (these ones will become the Judges), some of you will be content just dueling, some of view won't be abl to grasp the truth, and a few will in the end manage to cut a path for everyone to follow, leading humanity to salvation.
In terms of game mechanics, the roleplay will be structured in terms of game theory. Basically, each Number card is a piece of information, a shard of the truth you want achive. There are only so many Numbers, and there are only so many info one can collect to locate the missing Numbers: what will you do? Will you share your info with other people at the risk of seeing them getting their hands on new Numbers before you do, will you fight people for their info, or will you try and do everything alone?
There will be two different kinds of IC topic, between which we will alternate: "At School" and "After School". During "At School" topics, people will be given the time to socialize, talking to others, establishing relationships, discussing the latest events, and so on so forth (the first IC topic will be a "At School" one). During "After School" topic, people will be out, in Heartlan, wandering around the city: your goal will be collecting info necessary to locate the missing Numbers (hints on what to do to achieve this will be dropped by Anna during "At School" topic, so listen carefully to what she says!), by doing things like talking to other NPCs, investigating places, picking up the latest rumors while stopping at a bar and stuff like that. Each piece of info will only be available to a single person, the first one to obtain it: this means that if Player A somehow gets to know that "a rogue Number Holder can be found at Heartland Station", then Player A will be THE ONLY player to know this. There are only two ways to obtain the info another person possesses: share info with them (this way, Player B will get to know everything that Player A knows, but Player A will get to know everything Player B knows, too), or beat them up (read: beat them in a duel) into revealing their info.
Once a player locates a Number: they can go and duel the rogue Number Holder: duels between Number Holders will be Shadow Games, meaning attacks and effects will cause actual pain, and the loser will die. Should you lose a duel against the rogue Number Holder (and depending on the rogue's deck that might happen, keep in mind I'll be the one doing the dueling for NPCs) you will die, but Anna will rewind your individual time to save your life. You will awaken back at the school, having lost all of the info acquired up to that moment (I mean the info to find a rogue Number Holder in the context of that topic: you will not lose your obtained Numbers, so don't worry too much). it will basically be a "go back to square 1" penalty like in monopoly. It might sound harsh but don't worry, I'll go easy on you
When a player succesfully defeats a rogue Number Holder, the player will get their hands on the rogue's Number (keep in mind that this won't end the topic: topics will have temporal limits, meaning that in theory it will be possible for different players to challenge different rogue Number Holders simultaneously, as long as these duels don't go past the time limit). Obtaining Numbers will be crucial to advancing the plot, as each Number is engraved with an information: to use a metaphore, we could say that Numbers are pieces of the big puzzle of the truth. Each new Number you obtain is a step forward to the truth.
Much like with info needed to find the rogue Number Holders, the shard of knowledge engraved in a Number card is exclusive, meaning that only the person who physically holds that card will obtain that knowledge. However, unlike with info needed to find the rogues, sharing the shards of knowledge with others by talking during "At School" topics will be a beneficial thing to do, and will actually be encouraged in every possible way. So yeah, people can know what part of the truth your brand new Number unveiled, as soon as you tell them.
Clearly, it is evident how such a system is based on the sheer amount of knowledge available to each player at any given time. Because of this, while metagaming is always bad for any roleplay, in this roleplay metagaming will be particularly bad. So let me say this once again: READ THAT LINK I POSTED THAT EXPLAINS WHAT METAGAMING MEANS, AND MAKE SURE YOU DON'T DO IT.
Don't friggin' do it. Like seriously people, no matter what you do, avoid metagaming at all costs.
With this being said, you can expect the first IC topic (as mentioned, it will be "At School") to come out this coming sunday night (and when I say "night", remember I mean in GMT+1 terms). Tomorrow I will contact the people who claimed the position of Judges, to define a couple of things about their character development in the context I just explained. Arcana Number Holders can expect to be contacted as well.