Chi Weiran, unsure of the ambivalent feelings whirling within him, impulsively decided to wait in Han Yongrui's chambers. When he learnt about his mentor's condition being worse than his own and Han Yijun's, he couldn't shake the uneasiness plaguing him.
Although the three of them collaborated to defeat the demon, when they were combining their Qi to power Han Yijun's offense, Han Yongrui had undoubtedly exhausted more of his energy reserves.
And when the backlash of demonic energy targeted them after slaying the demon, Han Yongrui evaded him from the bulk of the dark energy assault with his own body as a shield.
Hence, the Grandmaster's aide received the brunt of the damages. For that very reason, Chi Weiran held himself accountable for his mentor's dire state.
He wasn't entirely sure what he intended to do by awaiting Han Yongrui's arrival.