Otooto

A hitman targets a princess who lives in lavish luxury. When she arrives, she finds her flirting with the prince. The prince steps in to protect her, but in the struggle, the princess hits her head and dies instantly. Though the hitman succeeds without staining her hands, the prince makes an unexpected and shocking request…

The main character, who promised to get married when he turned 18, looked at his family and realized "marriage is hell," but it was already too late. His childhood friend has grown up into a super duper nutjob woman he can't escape from?!

The main character, who promised to get married when he turned 18, looked at his family and realized "marriage is hell," but it was already too late. His childhood friend has grown up into a super duper nutjob woman he can't escape from?!