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

I've Been Killing Slimes for 300 Years and Maxed Out My Level (2021)

Action · Adventure · Animation

After dying of overwork in the real world, I’m reincarnated as an immortal witch, and I spend 300 years enjoying a relaxing life. At some point, though, I end up at level 99! All those years spent killing slimes to make the money to pay the bills gave me a ton of experience points. Rumors of the level 99 witch spread, and soon I’m up to my ears in curious adventurers, duelist dragons, and even a monster girl calling me her mom! I’ve never been on an adventure, but I’m the strongest in the world… What’s going to happen to my relaxing life?!

IMDb rating: 6.2 (2,298 votes)
Episode average: 7.1 ↑ +0.9 vs IMDb
Seasons: 2
Streaming (US): Crunchyroll
Language: JA
Type: TV series

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Ratings refreshed Oct 3, 2026 · 2 seasons indexed

Cast

Seasons

Season 1 (2021)

7.00 avg 12 episodes 7.0 → 7.4 23 min avg

Season 1 episodes - IMDb ratings
#	Title	Rating	Votes
1	I Maxed Out My Level	7.0	168
2	Along Came the Girl	7.0	141
3	Along Came the Elf	6.8	125
4	We went to a dragon's wedding	6.6	122
5	A Ghost appeared	6.5	116
6	Along Came a Leviathan	7.2	105
7	We Beat Up a Demon King	7.3	101
8	A Fake Witch of the Highlands Appeared	6.8	102
9	My Daughter Turned Into a Slime and Couldn't Change Back	7.1	97
10	A Minstrel Came to Town	7.1	98
11	I Ate a Mushroom and Turned Into a Child	7.2	96
12	We Opened a Coffee Shop	7.4	101

Season 2 (2025)

7.14 avg 12 episodes 7.1 → 7.3 23 min avg

Season 2 episodes - IMDb ratings
#	Title	Rating	Votes
1	Along Came a Goddess	7.1	52
2	We Searched for an Undead	7.1	49
3	We Went to Beelzebub's House	7.0	46
4	We Went Looking for a Mandragora	7.6	45
5	I Became Mama Yufufu's Daughter	6.9	45
6	Laika Entered a Martial Arts Tournament	7.3	41
7	I Met a Pine Spirit	6.7	42
8	We Went Swimming in the Sea	7.4	41
9	We Met the Evil Spirit Queen	7.1	42
10	We Went to the Demon King's Birthday Party	6.9	43
11	I Battled a Traditional Goddess	7.3	41
12	We Opened the Coffee Shop Again This Year	7.3	42

I've Been Killing Slimes for 300 Years and Maxed Out My Level (2021)

Cast

Seasons

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