The World’s Strongest Rearguard ki kahani Arihito Atobe ki hai, jo apni purani boring corporate job se tang tha aur ek achanak bus accident mein mara jata hai. Par uski kahani wahin khatam nahi hoti, balki woh ek fantasy duniya mein dubara paida hota hai jahan log “Seekers” ban kar adventures par nikalte hain. Wahan use ek bilkul nayi aur anokhi job class milti hai jise “Rearguard” kehte hain.
Is nayi power ke sath, Arihito ladai ke maidan mein sab se piche khada ho kar apni (all-female) team ko zabardast attack, defense aur healing support deta hai. Par iska ek mazeedar faida yeh bhi hai ke party ke piche khade rehne se uske sathiyon ka uske liye pyaar aur respect mazeed badhne lagti hai. Apni purani thakao corporate life se azad ho kar, Arihito ab is nayi duniya mein ek behtareen Seeker banne ke liye bilkul tayar hai.
