noun, noun or participle which takes 'suru', intransitive verb
loyalty; loyal deed
Refers to an act or display of loyalty, often in a feudal or dramatic context. Can be used as a noun or as a suru-verb (忠義立てする) meaning 'to perform a loyal deed'.
彼は主君のために忠義立てを尽くした。
He performed loyal deeds for his lord.
忠義立てする
It's a story of retainers who act out of loyalty.