So, let’s talk about Nishikinomiya Anna — she’s definitely one of the standout characters in A Boring World Where the Concept of Dirty Jokes Doesn’t Exist, better known as Shimoneta. Right from the start, Nishikinomiya Anna comes across as this almost unreal figure of virtue, serving as the student council president and embodying everything the society in the show claims to value: purity, discipline, and moral superiority. Honestly, it’s no surprise that so many students look up to her — she’s responsible, composed, and fiercely dedicated to maintaining a “clean” world.

But here’s where things get interesting. As the story unfolds, we start seeing cracks in that perfect image. Nishikinomiya Anna becomes increasingly fixated on Tanukichi Okuma, the protagonist who gets dragged into a secret group spreading what the society calls “lewdness.” Now, at first, her interest seems innocent enough — after all, Tanukichi saves her from some sketchy guys trying to take advantage of her. That moment sparks something in Nishikinomiya Anna, maybe even admiration, maybe more. She starts believing he shares her ideals, which makes her want to get closer to him, emotionally and otherwise.

Only, it doesn’t stay healthy for long. Over time, Nishikinomiya Anna’s feelings spiral into something far more intense — and frankly, kind of terrifying. Her expressions of affection become inappropriate, obsessive, even violent at times. It’s jarring to watch someone so seemingly pure transform into such a volatile presence. And honestly, that shift is one of the most compelling parts of Shimoneta. It forces viewers to think — what happens when you repress natural human desires for too long? What does extreme moral absolutism do to a person? Nishikinomiya Anna becomes a tragic example of how idealism, when taken too far, can twist into something dangerous.

In terms of character depth, Nishikinomiya Anna really stands out. Her arc isn’t just dramatic — it’s layered with psychological nuance and social commentary. She’s not just a symbol of purity; she’s a cautionary tale about control, repression, and the cost of perfectionism. The way her story develops adds real weight to the series, turning what could’ve been a silly comedy into something surprisingly thought-provoking. And yeah, Nishikinomiya Anna is absolutely central to that transformation.

Now, if we dive into personality types, there’s a strong case that Nishikinomiya Anna fits the INFJ profile. INFJs are usually deeply principled, empathetic, and driven by a strong internal moral compass — sounds familiar, right? Nishikinomiya Anna clearly operates from a place of conviction, believing she’s doing what’s right for society. Even though she judges others harshly, she also shows moments of compassion — like when she sees potential goodness in Tanukichi despite his supposed “sins.” Plus, her quiet, introspective nature and need for personal space? Classic INFJ traits. So yeah, it’s pretty convincing that Nishikinomiya Anna lines up with that personality type.

Then there’s the Enneagram angle. When you look at her behavior, Nishikinomiya Anna strongly resembles Type 1 — “The Reformer.” She holds herself and everyone around her to impossibly high standards. Rules matter to her — not just as guidelines, but as sacred principles. As student council president, she’s all about order, justice, and moral purity. But that same drive for perfection makes her rigid, judgmental, and sometimes outright hypocritical without realizing it. Remember how quick she is to label Tanukichi a pervert just for owning a banned book? That’s the Type 1 tendency to see the world in black and white, with little room for nuance.

And sure, her intentions might be good — she genuinely wants a better, cleaner society — but her methods become increasingly extreme. She doesn’t just enforce rules; she tries to impose her values on others, often dismissing their perspectives. That self-righteous streak? Yeah, that’s textbook Type 1 energy. So overall, whether you’re looking at MBTI or Enneagram, Nishikinomiya Anna is a fascinating study in how personality, ideology, and repression can collide.

At the end of the day, Nishikinomiya Anna isn’t just another anime archetype. She’s complex, flawed, and hauntingly human in her contradictions. From her role as the untouchable student leader to her descent into obsession, every part of her journey challenges the viewer to question societal norms and the price of absolute morality. And honestly, that’s what makes Nishikinomiya Anna such a memorable character in Shimoneta — she’s not just a symbol, she’s a warning wrapped in a school uniform.