I've Been Killing Slimes for 300 Years and Maxed Out My Level Season 2

スライム倒して300年、知らないうちにレベルMAXになってました～そのに～ (Slime Taoshite 300-nen, Shiranai Uchi ni Level Max ni Nattemashita: Sono Ni)

6.7(35,841)

MAL Score

Ranked #6692

Popularity #1996

Comedy
Fantasy
Isekai
CGDCT

Episodes: 12
Duration: 23 min per ep
Aired: Apr 5, 2025 to Jun 21, 2025
Status: Finished Airing

Synopsis

Three centuries after being reincarnated, Azusa Aizawa is still committed to a quiet, unhurried life—though years of casually hunting slimes have unexpectedly pushed her all the way to level 99 and made her one of the continent’s most powerful beings. What began as a simple routine has turned her into a local legend, whether she wants the attention or not.

Azusa’s strength and gentle nature continue to attract an eclectic group of friends, from the dragon Laika and the elf Halkara to the demon queen Pecora, along with the slime girls Falfa and Shalsha. With her household and circle of companions growing, the days ahead promise more relaxed escapades—and even more unexpected visitors turning her peaceful home into an ever livelier place.

Otaku Consensus

Season 2 earns its modest 6.7 MAL average by delivering exactly the light, character-driven iyashikei comedy its loyal audience wanted, with Kunihisa Sugishima’s direction keeping the tone soft, episodic, and low-stress rather than chasing bigger fantasy stakes. The same choice is also its ceiling: the most common criticism is that the season feels too self-contained and momentum-free, with several viewers calling it a step down from Season 1 rather than a meaningful escalation.

Why You Should Watch

Watch Season 2 if you want isekai as a recovery space, not a power fantasy checklist: no tournament arc pressure, no grim lore dump, and no demand that every episode push a grand plot forward. It scratches the same comfort itch as Laid-Back Camp or the gentler side of Bofuri, but with a fantasy household built around witches, dragons, slime girls, demons, ghosts, gods, and kemonomimi-adjacent oddballs. The appeal is in seeing a primarily female cast bounce off each other in low-stakes comic situations, with the found-family atmosphere treated as the main event. If you found Season 1 pleasant because it let characters simply exist together, this sequel doubles down; if you need narrative acceleration, it will likely feel intentionally underpowered.

Key Characters

A
Azusa(VA: Aoi Yuuki)
Azusa remains the franchise’s calming center: a powerful lead whose appeal comes less from dominance than from her insistence on turning fantasy chaos into household routine.
F
Falfa(VA: Sayaka Senbongi)
Falfa gives the series much of its soft found-family texture, functioning as one of the characters who keeps the comedy affectionate rather than purely gag-driven.
F
Flatorte(VA: Azumi Waki)
Flatorte adds a sharper, rowdier comic rhythm to the ensemble, making her a useful contrast to the show’s otherwise mellow domestic energy.
L
Laika(VA: Kaede Hondo)
Laika is the dependable straight-woman presence fans look to when the household’s fantasy eccentricities need discipline, sincerity, or a clean reaction shot.

What Makes It Stand Out

1
Studio Teddy produced the 12-episode second season, which aired from April 5 to June 21, 2025. The presentation is built around cute character acting and soft fantasy-comedy staging rather than spectacle-driven action cuts.
2
Naohiro Fukushima’s series composition leans into a self-contained vignette structure, a choice repeatedly noticed by viewers. Supporters read it as relaxing slice-of-life pacing, while detractors called it too episodic and lacking forward motion.
3
The show’s AniList tag profile is unusually precise for its niche: Female Protagonist at 91%, Primarily Female Cast and Cute Girls Doing Cute Things at 89%, Witch at 88%, and Iyashikei at 85%. That data captures why the season plays more like a comfort ensemble comedy than a conventional adventure isekai.
4
Keiji Inai returns as the credited composer for the season’s music, while Yui Ogura performs the opening theme and Aguri Onishi performs the ending theme. That pairing reinforces the season’s bright, character-first identity before and after each episode.
5
Audience response is sharply comfort-watch dependent: MAL lists it at 6.7 from about 35,500 votes, and AniList places it at 67/100. The split is not over whether it is dark or ambitious, but whether its intentionally mild pacing feels soothing or stagnant.

Fun Facts & Trivia

Fun fact 1: Season 2 is formally titled Slime Taoshite 300-nen, Shiranai Uchi ni Level Max ni Nattemashita: Sono Ni, marking it as a direct continuation rather than a reboot or spin-off.
Fun fact 2: The anime continues to credit Kisetsu Morita for the original story and Benio for the original character designs, preserving the light-novel foundation behind the adaptation’s pastel fantasy identity.
Fun fact 3: English-language production credits include Jessica Sluys on ADR script and Jerry Jewell as ADR director, indicating a localized dub workflow rather than a subtitle-only international release.
Fun fact 4: AniList records 710 favourites for the second season, a useful signal that even with middling aggregate scores, it retained a dedicated comfort-anime audience.
Fun fact 5: The season’s reception mirrors a common sequel problem for iyashikei anime: viewers who wanted “more of the same” often found it satisfying, while viewers expecting Season 2 to expand the narrative criticized it for feeling like twelve isolated visits.