Curate, connect, and discover
Haru once calls Yuujin his Hajime to Rei. And as far as narrative parallels go its true. I’d argue all of our main protags have a person. For Haru that’s Yuujin, and for Rei its Hajime. And for Astra and Eri it’s each other, though they aren’t as clear an example for numerous reasons, and are not the clear parallel Haru and Yuujin are to Rei and Hajime.
Haru is to Rei as Yuujin is to Hajime.
This parallel is also furthered by Yuujin and Hajime’s appmon. Offmon and Bootmon(Onmon). I’d also like to draw attention to their lines, as they're the ones that didn’t get full focus for logistical reasons. Offmon goes Super with Hackmon(Rei’s buddy). Onmon goes super with Gatchmon (Haru’s buddy). So… their super partners are the buddies of the other “main protag.” I mean, I think it's also game/marketing logistics because in the 3DS game, which I kind of assume many of the logistics were designed for (though I’m sure the anime was also being planned concurrently) because they are also the buddies of the main protag and the rival in the game, so giving their supers the anime protag buddy and the anime “rival” buddy just makes sense but I digress.
Yuujin is an AI who goes through the story as a “Human”. Hajime is a human who is converted to an AI. Yuujin was let out into the world to gather information and act as a double agent. Hajime was taken from the world to make use of his skills as a programmer. Both are used by Leviathan against their will. Yuujin is younger than he seems, and Hajime is more capable than his age would indicate. They are the characters whose existence acts as a catalyst to their “Protectors” future. At the beginning of the show Hajime’s abduction is what catalyzes Rei into becoming an Applidriver, and is his driving force for much of the show. Yuujin’s death at the end of the show is what catalyzes Haru’s decision to study computer science. That said, Haru’s decision to become an Appdriver is also influenced by Yuujin, declaring Haru has the potential to be a protagonist. Yuujin noted that Haru was changing, and that he had made new friends before he was brought into the fold, helping to highlight how Haru was changin even without Yuujin. Similarly, Hajime’s return at the end of the series seems to lead to Rei relaxing and truly appreciating all that he’s gained as an Applidriver when Hajime was gone. Even if he was already starting to appreciate everyone else beforehand.
Consistently throughout the story Haru was the one who understood that Rei’s priority was Hajime and was constantly reaching out to him to help with that. Haru was going to help Rei save his precious person. Yuujin was also kidnapped later in the story, and his rescue was helped by everyone, including Rei pitching in.
Rei thought he put Hajime in danger, but Hajime put himself in danger as Hajime was the one who “won”. Haru avoided telling Yuujin about Appmon because he wanted to keep him safe, despite the fact that Yuujin was his friend was because of the danger in the first place, and really, it being likely that if it hadn’t been for Yuujin Haru wouldn’t have become a “protagonist”. (Another case of Minerva and Leviathan’s circular 4D chess game).
Hajime created Bootmon. Hajime is already proficient in creating AI. This is what led to his abduction. But this is something that Haru hopes to study at the end of the show in order to bring Yuujin back.
Rei worked himself down and stopped taking care of himself in order to rescue Hajime, and was reckless in his pursuit. Haru similarly did reckless stunts to save Gatchmon, the world, and Yuujin. Yuujin actually did sacrifice himself, twice to save Haru and everyone else. Not to mention stopping Shutmon.
Yuujin’s sacrifice to save the world at the cost of his own life, ending Leviathan’s plans, is probably the series crowning moment, but Hajime also sacrificed himself to let Bootmon escape in an attempt to prevent Leviathan’s plans from coming to fruition. All four of these boys were tied to the plot in ways they didn’t fully understand at first, and are all the types of people to put their all into protecting people, even at the cost of their own well being.
Okay, but now that I’ve talked about the obvious plot players I’d like to talk about our final pair. Astra and Eri aren’t really as plot important as the other four. There really is no reason they of all people ended up as Appdrivers. They are both there to round out the cast so to speak.
Eri is the only girl of the group (as well as one of the oldest members of the group), and Astra is the only elementary schooler and somehow simultaneously both the season's token “traditional household” and the season’s token half-japanese diversity. They are both public entertainers, a role that stands in stark contrast with Rei’s intensely on the grid off the grid way of living. Their arcs both related heavily to making their decisions because of how much they care about their families. They are also a bit similar demeanor wise. They both have obnoxious catchphrases, are as purposefully arrogant as part of their schtick. As I said before, neither of them have a particularly large stake in the fight against leviathan (besides the obvious) and so overall have the same place narratively.
I mean, we didn’t know Haru’s connection to the whole thing initially, and it seems even Ai’s tangentially connected. But it can be said that Minerva somewhat purposefully chose someone she believed could be an idol to be an Appdriver because it would give them insider access to L-corp and the media. We know she’s not against somewhat far fetched plans (Yuujin for one). Which is why I think Eri’s idol career has a surprising amount of focus in the show because of its relevance to the plot. I can’t think of any reason why Astra would be a choice for an appdriver, beyond his social media presence, and… maybe a risk taken that didn’t pan out the way Minerva hoped (I mean, an elementary student, somewhat laid back, with little free time? There had to be some reason?).
Speaking of Minerva, Astra and Eri’s questions stand in stark contrast to each other. Eri’s question is related to deciding to support other people, and Astra’s question is related to following his own heart rather than people’s expectations.
Specifically Eri became an Appdriver after discussing with her mother about how hard she was working and her mom assuring her that she was happy as long as she did as she liked. Eri of course, did do as she liked, choosing to be an idol because idols made her happy hoping she could share that happiness, particularly to her mother who was working to make her happy. Early episodes featured Eri meeting fans, or in other words those who she was making smile, thus fulfilling that role. While her focus episodes became more about Eri’s drive as an idol, to succeed in her career for her mom by the end, she was willing to give up being an idol to move out from under Leviathan and more plot reasons.
Like Eri, Astra started out rather lonely, and became an Apptuber because watching an Apptuber made him happy. But unlike Eri’s initial episodes, which were about learning who exactly it was she was supporting as an idol, beyond herself (and mother) which made her efforts to succeed as an idol later on more appreciated. Astra’s first focus episodes were about him being himself learning not to try and be someone he’s not, even in his new role, and that he shouldn’t have to impress people. His later focus episodes then went to deciding that even if he was choosing his own path as an Apptuber, he was still holding to obligations because he wanted to hold to them, and finding ways to support his family as an Apptuber. Astra’s arc is a little harder to grasp due to the relative lack of focus episodes, and like the Katsura’s backstory, not really being explained in full, his motivations as a character are a bit multilayered.
And as I’ve said, each member of the cast has their “important person” who they’d potentially sacrifice the fight for. Yuujin and Haru for each other, and the Katsura brothers for each other. Despite having no deep backstory prior to the start of the show, and in fact kind of starting out at constant odds they form an extremely close relationship over the course of the show. Astra treats Eri with his trademark casualness (referring her to just Eri, which is something no one else does, but also, he treats everyone like this). But Eri quite notably refers to Astra as “Tora”. While she picks this habit up before she met Jenny, it’s interesting to note that Jenny also calls Astra “Tora”. (And Dantemon? For Whatever reason?). And for his part, Astra does not discourage her from calling him this, despite the fact it’s probably a rather personal nickname. I personally take this as sort of an indicator as the sibling-like relationship they have. (I think it’s very important that despite their numerous moments showcasing their relationship, there is never any romantic implication. I mean, it’d be kinda weird since it’s 3 years and they are still so young. But it's not unshippable by any means, and I’ve seen worse).
While Rei was shown to prioritize Hajime over everything throughout the show, and Haru’s internal struggle with fighting over his friend are clear moments of characters having to choose to do the right thing at the potential harm to their loved ones, Astra also has a moment like this in regards to Eri during his final fight with Fakemon. There’s also the way he reacts when he realizes she’s potentially in danger in episode 36. Astra cares deeply for Eri and despite the casualness in the way he treats her, it’s clear that he has a lot of respect for her, and the passion she dedicates to being an idol.
Another important moment is when Astra asks Eri why she’s working herself so hard. Astra of course knows his father who works himself to the point of the detriment to his health, and so this drive is something he is familiar with, but as Astra’s arc is the one that relates to him doing what he thinks his best for himself, and then the support to others working its way in from that. Eri’s arc is more about learning to work to others’ benefit as well as your own. So Astra being the one to ask her if working herself like this is really what she wants to do and thinks she should do.
Eri doesn’t have a similar dramatic moment over Astra, much of her growth involving less personal interactions between people. Again, Eri’s career is marked by inspiring more people, and perhaps being more big picture, Eri is frequently approached by fans, and is constantly building her presence. And while Astra has his fans, he’s rarely approached on the street and has relatively little fan interaction.
Whereas Astra’s shown to have a more narrow minded focus on who he cares about, doing Apptube primarily to do as he’d like, getting over his focus on other people's opinions rather early on. His priority being his family, Musimon, and his friends (especially Eri). But Eri does seem to care for Astra in return. Her reaching out to save Astra during episode 15 was a moment where she reached out to someone first to help forge a bond.
Perhaps its because Astra and Eri are the characters meant to flesh out the cast, is why I find them and their dynamic so interesting. They aren’t part of this tragedy. But they, and to a lesser extent Haru’s friends, tie the cast back to the rest of the world, which I think was really important in Appmon.
The characters in Appmon relate to each other both in their relationships with each other and the parallels in which they go about protecting and supporting each other. In this way, connecting to each other, AI or human, learning from each other and changing how they act, they come to push back against Leviathan's idea of the predictability of humanity, and against fear for those we don't understand.