She deliberately loosened the faucet just to see him fix it. He knew it was intentional, but he practiced it every time. The clearer he calculated, the more he owed.
This is a two-player game in the name of debt - she chases, he escapes, she uses rules to trap him, and he uses calculations to hide his heartbeat.
From 27.5 Yuan to the ring, from precision to out of control, the whole process was D, but D was done quietly.
