Divorce

"I… don't know," said Ethan, who is now back to pretending to act.

He had previously shown the emotion of being clueless, so he was sure his current acting of pretending to be clueless was already very good and convincing.

Elena looked back at Ethan with a still suspicious look. 

Did her brother really know nothing? 

Then Elena would ask one last question that was still on her mind, this time Ethan would know something because it was in his house after all.

"Then what about Yui?" 

Elena's question took Ethan by surprise for a moment, before he finally put on his previous facial expression.

"Yui? Who's she?" asked Ethan, confused.

Elena, who was used to observing people's faces, caught the look on Ethan's face, which looked surprised earlier.