I love this series, I like the way everyone seems to think Yugami doesn't understand others, yet he seems to always know how they'll react and reply to the given situation. My favorite part about Yugami is how he always deliver the message in abrupt and direct way, not rudely but everyone interprets it as rude. I like how he knew Chihiro would interpret the letter incorrectly initially, and even not knowing what it said knew how it would end. He's one of my top 3 manga MCs (Mizushima Toru of "Iris Zero" and Hikigaya Hachiman of "Yahari Ore no Seishun Love Come wa Machigatteiru"), yet he is the most unique of all the series I've ever read.