No one else can " Heechul added , and then mentally hit himself for actually making things worse . Hankyung 's lips lifted into a small smile which failed to reach his eyes . Heechul had never seen this side of him before .
Why did the smile fail to reach Hankyung 's eyes ?
Pick the best answer from the following options:
- Because the smile was genuine .
 - Because Hankyung 's eyes were swollen .
 - Because the smile was insincere .
 - Because Hankyung 's eyes were closed .


Because the smile was insincere .