The Marquis of Dong'e's Residence.
"Younger Brother, you must be careful on campaign. Keep the Spirit Soldiers close, and be cautious in everything you do. Once you reach the Grasslands, don't drink untreated water or eat food indiscriminately. Make sure you bring enough physicians. If the tribes throw cattle and sheep that died of disease into the rivers, it could harm your health. That worries me most."
Luo Jin Xiu packed Luo Wuji's bags with considerable worry, fussing over him as she spoke. She knew this was his destiny, but as his eldest sister, how could she not worry?
Luo Wuji listened earnestly, nodding in agreement from time to time. In truth, however, disease was the very thing he worried about least, because he had the protection of his ancestral deity.
[Intermediate Explorer: By expending fortune, you can equip clan descendants with this title. Descendants gain language proficiency and a degree of immunity to disease when away from home. A small portion of this immunity can extend to their companions. PS: Bringing physicians is recommended.]
Luo Zhongkan had once traveled ten thousand li without falling ill. With this title equipped on his journey to the Grasslands, Luo Wuji would never suffer what Huo Qubing had. Luo Jin Xiu simply did not know that.
Once his bags were packed, Luo Wuji laughed heartily. "Don't worry, Sister. Wu Ji will certainly return in one piece. Father's last wish remains unfulfilled. Wu Ji will always swing my blade and advance."
Luo Jin Xiu raised a hand and stroked his head. "I know. Although you never met Father, you must be his greatest pride, and the Luo Clan's pride as well. You're a great roc spreading its wings across the nine heavens, destined to soar high. I won't stand in your way.