Boku no Kokoro no Yabai Yatsu S01

Kyotaro Ichikawa may seem like an ordinary middle school student at first glance, but deep down, he has a dream of committing murder. It's no surprise that the one he wants to kill is Anna Yamada, the most popular student in his class. While studying alone in the school library, he decides to make a date with Yamada, and she agrees because of her love for water and sweets. Through their interactions, he realizes how careless and scatterbrained Yamada is, and unconsciously, he wants to take care of her without anyone noticing. Maybe eventually, Ichikawa will realize that his desire to kill Yamada has transformed into a completely different feeling.