Shortly after Ken and Daisuke jogress for the first time and before Ken is comfortable with it. Some situation forces them to spend time together (for example, a storm forces them to find shelter until it passes) and Daisuke describes what Ken’s soul feels like to him and asks Ken what his own soul feels like. It takes a while to get over the embarrassment of the intense, scary intimacy, but Ken does eventually respond honestly. No smut since they’d both still be kids.