The MC seems like a coward in the beginning, then as the plot reveals more, he's forced to face his fears of the past while living in the present cuz of his reincarnation. Although he has made mistakes just like all humans did, not taking the right action at the time required caused him many problems. His name was ygret, lived poorly in regret before attaint spirit magic, died from natural death with regrets while betraying people's trust (even though there were some who shamelessly/with pride on the line, asked him for help) and rebirths only to receive a name 'Judas' , the person who betrayed Jesus and also "regretted" doing so. This manhwa gives me a cute, yet a bit depressing vibe (just my pov) as if ygret would regret killing the very disciple whom he had taught well. Maybe it's because this portrays some bit of both worlds; black and white with grey areas, how political battles are done for survival but at the same time numbs one's emotions.
Ygret