>In a way, it's about the parasocial relationship from the side of the streamer. There are 5 on that boat, 4 of them being her 4 outfits, representing all of the different facets of her that people come to her stream for, and Mr. Silence, who is a surrogate for the audience.
>From our perspective, we get our parasocial fix in the form of her voice and avatar, but she gets her validation simply from seeing letters scrolling up on chat while listening to her own voice in a silent room. This is just as lonely, in its own way.
>She begs you to choose her. No matter which one, she doesn't need 3 of the 4. Whatever reason you decide to come to her for, she's happy. But as indicated by the mahou shoujo sequence near the end, they're all equally her. The horny, the insecure, the wise and the funny Marine, to name a few of her main traits, are all Houshou Marine.
>Her making a pun between choose me and "chuu", as well as later with "ne, chuu shite" imply a certain level of romanticism/erotism to this relationship, it's not just performer and audience. She wants you to fully embrace her, to have her as your oshi.
>The boat is sinking, you need to make up your mind already. She asks you to think about what she's been telling you as the beat begins to lose steam. She needs her Mr. Silence to motivate her, the reason why she puts in as much effort as she does is to please her fans. She can reach even higher highs, accomplish greater goals, explore a brand new world, but there's no point without (You).
>In a way, it's not far from the typical idol song about how the idol owes everything to her fans, but much like her zatsudan streams, it feels much more melancholic than simply grateful. She's not thanking you for being there up to this point, she's desperately asking you to remain by her side.
>If Ahoy is about her channel, Unison is about her.