From Renta!:
Former office worker Isshin quits his office job to do hard physical labor in the delivery business. As the daily grind wears down his body and soul, his only solace is working with his beloved coworker Haz?. Haz? has it all - good looks and excellent occupational skills. One day, just when Isshin's starting to feel like Haz?'s titillating presence makes his job…