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...
Dragons can see in the dark, so if I work 
all night, I can finish by morning.
بإمكان التّنانين الرّؤية في الظّلام، لذلك
.إن عملتُ ليلاً، فسأنتهي بحلول الصّباح
Drachen können auch im Dunkeln sehen.
Los dragones vemos bien de noche.
Los dragones vemos bien de noche.
Nous, les dragons, sommes nyctalopes,
j’aurai fini demain matin !
I draghi possono vedere al buio, quindi, 
se lavoro tutta la notte, posso finire entro mattina.
Dragões podem enxergar no escuro, então
posso trabalhar à noite e terminar de manhã.
Драконы хорошо видят в темноте,
так что к утру уже управлюсь.