I'm not very good with Korean names in the manhwas I read, but the ceo said Sunghwi (the husky) also went to the same high school with him and Lee Yooli and he also went to her memorial, I thought it was weird the way the husky looked at her when Yooli saw him the day her body died.
I'm only theorize but I cannot stop thinking maybe he had a crush on her.
Thanks for the chapter~