Lucius knew he couldn't act normal after his return, or it may arouse suspicion. He couldn't cry due to his Xenovian genes, so all he could do was act detached and distant.
With Lia moved to another room, Lucius had the entire room to himself. He spent most of the night meditating and fusing his aura with his martial technique.
No one could find him suspicious for trying to get stronger after going through a traumatic event. They would believe he was motivated to get stronger after everything that happened to him, and many would see this as a positive way to deal with issues.
In the end, he would only gain the respect of others while also getting what he wanted.
After practicing two types of martial arts, Lucius's Qi reserves had grown abundant. Regardless of the nature of his Qi, be it normal Qi or ghost Qi, they were all the same and served the same purpose.
