Utter Confusion

"Shuho-san... have you ever, just like this, offered a drink that you’ve already sipped from to another boy?" Seiji asked in a clear voice, looking at her intently.

Hitaka blinked in surprise. She then tilted her head slightly and considered the question. She averted her gaze after a few seconds, then focused on Seiji again after another few seconds.

"No."

It was easy to tell that she tried to recall any other such instances before answering.

So, Seiji’s guess had been on the mark.

Seiji could only smile wryly.

"Then, do you know the hidden meaning of such an action?"

Hitaka blinked again, and there was a look of utter confusion on her face.

"Alright, you don’t need to answer—I already know that you don’t know." Seiji felt a sudden urge to cover his face.

How should he explain it?

He thought about it for a few seconds.