After receiving the dark vampire's warning, Smith devotes the entire day to determining why the outcome of his experiment development differs between Helios and Moon Ryeong. The scientist is required to make a report once the sun has set, as per the vampire command. As a result, the three of them have gathered in the living room to hear Smith's explanation.

    "Sir Helios is not only affected by the sun's radiation, but also by its own light. Miss Moon Ryeong, on the other hand, was only affected by the radiation. That is why the significant result of exposing Sir Helios to sunlight causes severe injury while Miss Moon Ryeong is...