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...
Mana is now going to 
circulate throughout you,
،ستنتشر المانا من حولك الآن
Durch das Mana, das dich sogleich
durchströmen wird,
Haré que el maná rote por tu cuerpo
Haré que el maná rote por tu cuerpo
Maintenant, je vais insuffler du mana
dans ta réincarnation,
Ecco, il mana sta per circolare attraverso di te,
Agora, uma corrente de mana
circulará pelo seu corpo,
Сейчас внутри тебя появится мана,