Aizawa Azusa, a corporate drone who died of exhaustion from overwork in her previous life, is reincarnated in another world, where she decides to live out a slow and uneventful life forever. But then, 300 years later, she discovers that the experience she earned by defeating slimes every day just to keep up her easy lifestyle has brought her to level 99 and made her the strongest in the world. The rumors begin to spread, and soon trouble comes knocking...
I just... wanted to show 
you how hard I can work...
لكنّني... أردت فقط أن أريك 
...أنّ بإمكاني العمل بجدّ
Ich wollte Euch nur beweisen,
wie hart ich für Euch arbeiten kann …
Solo quería esforzarme para terminar.
Solo quería esforzarme para terminar.
Je pensais simplement
vous faire plaisir.
Io volevo solo... 
dimostrarle che posso impegnarmi al massimo...
Eu só queria te mostrar o quanto
eu consigo me esforçar...
Я просто... хотела показать,
что трудолюбива...