I forgot the name of this novel. Please tell me if you know. Thank you!

I forgot the name of this novel. Please tell me if you know. Thank you! There was a beautiful novel about a person who traveled back in time and was reborn into ancient times. He brought his younger siblings and newly adopted younger brother to become rich, and finally, his younger brother became the emperor. At the beginning of the novel, he sold eggs and planted lotus roots, which made the villagers jealous. Later, he took his adopted brother to take the imperial examination and sell preserved eggs. Then, he found out that his adopted brother was related to the emperor. After that, there was a war. The enemy occupied the imperial city. The elder brother became an official and helped to plan and recover the imperial city. The sworn brother realized his feelings for his elder brother and wanted to be someone worthy of his elder brother. Therefore, he became a general. He grew and matured in the war. He drove the enemy out of the imperial city and was supported by everyone. He became the emperor. In the end, the elder brother and sworn brother were happy together.