So, I was watching Marine's archive and she ended up talking about a few stuff regarding Kanata. Another anon touched on one of the topics previously but I'll just include it for the sake of completionism
>Someone asked if Marine watched Oshi no ko, said she watched it and that Kanata had suggested her the manga a couple years ago
>Marine gets easily stressed in tournaments like the Puyo one and Mario Kart and she's thankful that Kanata is there to comfort and support her
>Marine really appreciated that Kanata didn't tell her "you better win now" after their match because Kanata knew it would put more pressure on Marine, that's also why during the MK tournament she kept telling Marine that nobody expects her to win to calm her down
>Some people were asking if Marine is going for some sort of comprehensive medical check up, she said that Kanata actually talked to her on LINE today to make plans to go for their check ups together.
Kanata really cares about Marine. It's also funny that the ichimis know how much Kanata worries about Senchou, whenever one of these topics come up they always say stuff like "supedari", "of course Kanata", "KanaMari teetee"