So it was a succession war, with Twin princes one was the good prince and other was lazy prince. While the good prince was trying people thought lazy was lazy... Well he had another identity called silver, a SSS ranking adventurer. The lazy prince was the protagonist. He had female friend kinda of tsundere called brave heart(sir name). He also picked up a Duke's daughter. I guess this much info should be enough if more needed I'll add more. please help.
Previous Life was Sword Emperor. This Life is Trash Prince. - not sure, it's been a while since I took a look at this and I didn't go pass the 1st story arc