ichidan verb, intransitive verb
Used for serving a master, lord, or employer in a loyal or subordinate capacity. Often implies a long-term, dedicated relationship, such as a retainer serving a feudal lord or an employee serving a company. The object is marked with に.
彼は長年、その会社に仕えている。
He has served that company for many years.
忠
A loyal retainer served the king.