After living life as acorporate lapdog, Arihito is reborn in a fantasy world. Strangely, the classhe's assigned is the very ambiguously titled Rearguard. It seems weird, butArihito soon figures out that though it isn't flashy, he's gained the ability todo just about everything in battle, from assisting attacking and defending tohealing! As he begins his new life, he quickly gathers curious companions: hisold supervisor who's younger than he is, a mysterious demi-human mercenary girl,and a gorgeous high-level swordswoman. With this bevvy of interesting ladies inhis party, his journey as the greatest supporter that's everlived!