In 'This love is too heavy!!!', Lutia, unknowingly the reincarnation of the esteemed Holy Sword Exceltier, leads a simple life as a guild worker. Unexpectedly, Ashard, the legendary hero and former wielder of the Holy Sword, reappears. Despite the Holy Sword fulfilling its destiny in defeating the Demon Lord, Ashard's attachment to it remains profound, to the extent of bathing and sharing a bed with it! The looming question arises: how will Ashard's affection shift if he discovers Lutia's true identity as the reincarnation of Exceltier?