TL;DR: So I’m a Spider, So What? is an energetic, humorous survival story wrapped inside a surprisingly complex mystery. While it looks silly on the surface—a girl reincarnated as a spider—the show explores perseverance, identity, and how individuals adapt when thrown into circumstances they never chose. It’s engaging and funny, but its heavier survival themes and fantasy violence make it a better fit for older kids and teens rather than young viewers.
Section 1: So I’m a Spider, So What? (24 Episodes) — At a Glance
Anime Summary | Taken directly from MyAnimeList
The day is as normal as it can be in high school as the students peacefully go about their everyday activities until an unprecedented catastrophe strikes the school, killing every person in its wake. Guided by what seems to be a miracle, a handful of students are fortunate enough to be reincarnated into another world as nobles, princes, and other kinds of people with prestigious backgrounds.
One girl, however, is not so lucky. Being reborn as a spider of the weakest kind, she immediately experiences the hardships of her dire situation. Even so, she must press on to survive the numerous threats that endanger her life. Discovering that her new world has a system like that of an RPG, she tries her best to hunt prey and defeat monsters to level up and evolve. As she gradually grows stronger, she hopes one day her efforts will be rewarded, and that she will be granted a better life.
Genres & Themes
Action, Adventure, Comedy, Fantasy, Isekai/Reincarnation
MyAnimeList Rating
PG-13+ | Teens 13 and Over
The Anime Momma Rating
PG-13+ | Teens 13 and Over
Section 2: Star Levels
Each category below is rated on a five-star scale:
⭐ = very little present | ⭐⭐⭐⭐⭐ = a lot present
- Action/Violence Level: ⭐⭐⭐⭐⭐ (5/5)
- Addiction Level: ⭐️⭐️⭐️⭐⭐ (5/5)
- Blood/Gore Level: ⭐⭐⭐⭐☆ (4/5)
- Inappropriate, Heavy, or Mature Themes or Conduct: ⭐⭐☆☆☆ (2/5)
- Alternative Lifestyle Themes: ⭐⭐☆☆☆ (2/5)
- Level of Magical Elements: ⭐⭐⭐⭐⭐ (5/5)
- Level of Romance: ⭐☆☆☆☆ (1/5)
Section 3: Star Levels — Explained
Action/Violence Level
This series is packed with action right from the start—but it’s a very different flavor than your typical battle anime. Much of the early story follows Wakaba simply trying to survive in a dangerous dungeon after being reincarnated as… you guessed it… a spider.
Her encounters range from poisonous frogs and venomous snakes to far more intimidating monsters (including dragons), and while she grows incredibly strong over time, she never just breezes through life.
Every victory feels earned through strategy, trial-and-error, and a lot of panicked inner monologuing. One of the most enjoyable parts of this show is hearing her think through problems, plan attacks, and adapt on the fly—it feels like you’re leveling up alongside her.
Later episodes shift tone as larger conflicts unfold between humans, demons, and elves. These battles feel more like traditional wartime clashes and leave behind the kind of aftermath you’d expect from war: fallen soldiers, scattered weapons, and blood on the battlefield.
Addiction Level
This is a “just one more episode” kind of show. The pacing, humor, and unfolding mystery make it incredibly easy to binge. On my first watch, I finished it in under two days, and even on rewatch it was hard to step away because there are so many small clues woven into the timeline and character connections that I felt like I had a whole new understanding of the series.
Blood/Gore Level
There is a noticeable amount of blood throughout the series—from monster battles to wartime scenes—but it generally stops short of becoming graphically gory. Some moments may feel intense for younger viewers simply because survival in this world is harsh.
At times, heavier visuals are softened or partially obscured, and the show doesn’t linger unnecessarily on injuries. Even so, the cumulative intensity may be better suited for teens rather than younger kids.
Inappropriate, Heavy, or Mature Themes or Conduct
The story opens with an entire classroom being reincarnated into another world, and Wakaba quickly discovers that life as a monster means living by survival rules—including other creatures consuming the weak. These moments are presented more matter-of-factly (and sometimes even with humor), but the theme itself may be unsettling for sensitive viewers.
- Later, Wakaba admits to consuming what she finds in order to survive, reinforcing the stark “eat or be eaten” nature of this world.
Outside the labyrinth, human societies introduce political and religious conflicts. Two powerful religious factions influence nations and wars, and the show gradually explores how ideology, power, and fear shape their actions.
Another element worth noting is the presence of bullying in the characters’ past lives. Through flashbacks, we learn that Wakaba had been the target of hurtful treatment from Fei (Shinohara Mirei) during their school days. The series does not dwell heavily on these moments, but it does show Fei carrying deep regret. She repeatedly asks Oka about Wakaba’s whereabouts, clearly wanting the chance to apologize and make things right. This can open the door for conversations with older kids about kindness, repentance, and how our words can affect others long after the moment has passed.
There are also occasional moments of fanservice (brief character designs meant for humor or exaggeration) and some stronger language in the subtitled version.
Alternative Lifestyle Themes
Some reincarnated characters find themselves reborn as a different gender or even a different species. These changes are sometimes played for humor or confusion rather than explored deeply, but parents may want to be aware those elements exist.
There are also moments of exaggerated sibling admiration and schoolyard-style teasing among characters, though these are generally portrayed as awkward comedy rather than serious subplots.
- For example: There is a flashback during episode 8 where Shun and a few others joke that Kanata is into men, which Kanata vehemently denies. This makes the fact that Kanata, reincarnated as Katia (a woman), liking men a bit more believable– though it is never confirmed in the anime.
Level of Magical Elements
Magic is central to the entire experience. Skills, abilities, and power progression function almost like a role-playing game system, with characters gaining new strengths as they grow. Elemental magic, advanced skills, and mysterious administrators all point to a world that operates on rules far beyond normal fantasy.
Part of the fun is unraveling how this system works—and realizing there’s far more going on beneath the surface than a simple isekai adventure. This is actually one reason I am largely forgoing spoilers and information about specific scenes from this review.
Several characters are described as being “over-powered,” but what makes this anime a great one is that for one reason or another, they still struggle before they ultimately succeed.
Level of Romance
Romance is minimal and not a driving force of the story. There are brief moments of flirtatious comments, mostly geared toward how Kanata (now known as Katia) has been reborn as a woman. However, relationships still take a backseat to survival, mystery, and world-building.
Section 4: Special Notes for Parents & Guardians
At its heart, this anime is about resilience. Wakaba faces an overwhelming situation and learns to endure it step by step, growing stronger not because life is easy, but because she refuses to give up. Families watching together may find opportunities to talk about perseverance, problem-solving, and trusting that growth often comes through hardship rather than comfort.
Final Thoughts
Don’t let the quirky premise fool you—this story is much deeper than “a funny spider adventure.” Beneath the humor is a layered narrative about survival, consequences, and how our choices shape the world around us. For families with teens who enjoy fantasy and video-game-style storytelling, this one can spark thoughtful conversations alongside the action and laughs.
Thank you for reading this review and I look forward to seeing you in our next one. 💛
At The Anime Momma Blog, my goal is simple: helping parents understand the anime their kids love so families can watch with wisdom, discernment, and great conversations along the way.
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