I've Never... Heard of This

"Brother Seiji, if you would like to be alone together with Uehara-san, you should've just said it directly," Shika said with a calm expression. "I’ll go back to my room." 

It was even more awkward now that his adopted sister had seen through his small trick!

Seiji wanted to cover his face.

He peeked at Mika and saw that she was blushing furiously with her head hanging down. She was acting like a shy little girl.

This atmosphere was really…

He didn’t care anymore! Just let it be.

"Shika-chan, please allow me to be alone with Mika for a little while," he said directly.

"Okay, Brother." Shika stood up, walked back to her room, and closed the door.

Seiji looked back towards Mika again. Mika was still looking at the ground.

He felt it was really difficult to speak… but he had to say something.