The parallels between Tsubomi and Reigen drive me so fucking insane you have no idea like—that shit had to be at least SOMEWHAT intentional even if not in a specifically romantic way.

For one, Tsubomi and Reigen are two of the only few people that call Shigeo "Mob" consistently. (Yes Tome also calls him Mob eventually but she starts out calling him Kageyama-kun and likely picks up "Mob-kun" from Inukawa or Reigen later on). We don't know how Reigen started calling Shigeo "Mob", though we can assume that Tsubomi was likely part of the group of kids that originally misread Shigeo's name as Mobbu to begin with so she's less of a mystery on that front. Maybe Reigen saw it written on his backpack or his shirt tag and started calling him that too, or maybe Mob even just told him that that's what everyone else called him and was what he prefered to be called at the time. Either way, it's a little odd that Reigen's one of the only people who use that nickname when we don't really get a reason why beyond "it can also be read like this", especially since Reigen is a grown man with (presumably) full literacy of kanji and would know how to read it.

Then there's the other obvious parallel that's made in the show; how Tsubomi and Reigen treat Mob. How they see his powers. They're not special, they're just a part of him. Nothing to be scared of—even though they kind of,,,,are lmao. The fact that Tsubomi continues to sit in the park even though a literal hurricane is approaching because she thought Mob sounded upset on the phone happens at the same time Reigen goes sprinting full-tilt into said hurricane because Mob is in trouble always stands out to me. It's less obvious than Mob's own words: "She never treated me any differently because of my powers" "Master never treated me any differently..."—but it's still a pretty blatant parallel to me.

Not to mention that both Reigen and Tsubomi's personalities are actually very similar as well! They're both described as people that hide behind a mask, a facade, while still being brutally stubborn. If Tsubomi doesn't want to do something, she's not gonna do it. While Reigen is more laid back because he's used to getting his hands dirty for work (money), he's still very stubborn himself when he doesn't wanna do something. He'll find a way to wriggle out of it and talk circles around you if you let him. Dimple even says that Tsubomi is the type of person who can't be swayed by words or peer pressure. She and Reigen were actually, again, two of the only people brainwashed through airborne Vibes™ instead of through food like everyone else. The biggest difference between them on this is that while Reigen lies fairly blatantly, Tsubomi seems to only lie through omission. Tsubomi is more of an introvert too, compared to Reigen's extrovert (though you could argue that both of them are good with people, with the only difference being that Reigen enjoys being the center of attention while Tsubomi presumably does not).

Plus they're both pretty goofy too once you think about it lmao. They're both prideful and hate to be humiliated, but they also care a lot about their public image and how people perceive them. Every time the scene with Tsubomi and her friends outside cleaning up leaves comes up, her expressions and panic always remind me of Reigen. And then there's Mob, calm and unjudgemental, willing to help her with no questions asked. Mitigating her humiliation, just like he does for Reigen :)

Another thing that always strikes me is how Mezato says, "If you can accept her for who she really is..." followed by Reigen's echo during his confession: "This is who I really am". Mezato essentially tells Mob that Tsubomi isn't who she seems on the outside and that if he wants to be accepted by her, he needs to also be ready to accept her as well. Which, we don't get to see much of Tsubomi's life outside of Mob—wow just like Reigen—so we don't ever really know who she is beyond that outer mask, but we see her slowly opening up to Mob later, as a friend. But the fact that Reigen's own confession mirrors Mezato's words to Mob about him accepting Tsubomi always makes me vibrate in place a little like,,,Confession Arc my beloved 🙏

I don't know man, there's just so much there, it makes my head spin. I could go on and on about it but I better cut myself off because if I don't I'll start crawling on the walls going feral about it because what, what was the point of this if not to make it clear that the relationship between Mob and Reigen is supposed to parallel his relationship with Tsubomi like what do you MEAN—