Setsuka was confused about how to answer her mother's question. If Koyuki knew about Tenku, she would investigate him. Setsuka was worried that Tenku would be angry if he learned about it. Tenku doesn't want to meet her parents, at least not now.
"Hmm? Why are you silent? What is the name of Kohana's savior? Your father and I want to know about him. We intend to express our gratitude in person since he saved Kohana twice." Koyuki felt strange when she saw her daughter's reaction.
"Ah, he is a student from Suisei High School. He is a bit introverted and doesn't like talking to others. He had even refused words of gratitude from me. He didn't want to get involved with important people in Japan, so I didn't tell you about him. I have to protect his privacy as he is Kohana's savior." Setsuka replied. She could only think of that reason to answer her mother's question. But before Koyuki could say anything, Setsuka opened her mouth again.