User blog comment:IamJakuhoRaikoben/Chapter 470: The Hybrid Theory, Review./@comment-114.108.214.179-20160126080151

What's the point of having Serena in the first place? When this character was introduced, he was already a traitor, and having him killed off without any character background or why he betrayed Ishgar makes his appearance pointless, and to me even if we learn more about him after his demise, the damage has been done.