At the very beginning, Xiao Yi suddenly realized he hadn't seen Eve for a very long time.
He initially thought that the time between their meetings was just extended once more, and although he felt somewhat hollow inside, he did not pay too much attention to it.
Then, as time went on, Xiao Yi became increasingly aware that his initial thoughts were merely self-consolation.
That sister... had truly disappeared forever.
By the time Xiao Yi realized this, he didn't cry or lose his soul; he just stood there motionlessly, stunned.
The emotions that surged inside him were too many, leaving him momentarily unsure which to express, and he could no longer distinguish which emotion was the most important.
She had left him, and once again, he was alone.
It wasn't the romantic open ending of stories but the stark and clear, terrifying reality.
At that time, amidst his confusion, Xiao Yi learned an ability that everyone must acquire as they grow, an essential skill for survival.