For people like Chen Qing and Shen Qi, infiltrating the Imperial Palace wasn't difficult, but now, to avoid drawing attention, they would do well not to use their Spiritual Power unless necessary. Theoretically, as long as they didn't utilize Extraordinary Power, they wouldn't be marked and watched, but when a Transcendent individual acted, there would always be something different from a common Magician; they could always be noticed.
The best approach was to enter the palace with the Imperial Concubine Bei Yu.
It was difficult for men to enter the Court, so the only option was to disguise themselves as a personal maid. This was not a big issue for Shen Qi, who was naturally delicate and fair-skinned. Dressed as a woman and softening his features slightly with Makeup Technique, he would pass as a standard beauty.