Fang Chuyi's words weren't direct, but even Matsuno Yoshika understood the implications of his words.
Some people have particular quirks.
Some like clandestine affairs, while the Fourth Grand Protector prefers to act openly.
Insights can't just be seen with sharp eyes, they come from a sharp mind. Fang Chuyi's seventh brother conquered a piece of territory with Medusa, relying not only on brute force but strategy.
But why did Matsuno Yoshika fail to understand Fang Chuyi's implication of pointing toward the ceiling?
Were people going to crawl from the ventilation shaft?
Unlikely?
These people knew the layout of the place like the back of their hand. In this critical moment of a knife fight, the Fourth Grand Protector would definitely bring his strongest force for a melee combat. A fight to the death, and he would definitely anticipate Fang Chuyi slipping away through the ventilation duct!