Shin-Ei Animation

Shin-Ei Animation (シンエイ動画株式会社) is a Japanese animation studio owned by TV Asahi and founded in Tokyo in 1965 as A-Production by Kusube Daikichirou, who was previously an animator for Toei Animation. In April 2017, SynergySP became a subsidiary of the company.
*wikipedia

Ichikawa Kyoutarou may seem like an average guy his age. However, deep down, he harbors a secret desire to commit murder. His first target? The class idol, Yamada Anna. However, everything changes one afternoon when he strikes up a conversation with her in the school library, where she’s quietly enjoying some snacks.
Takagi and Nishikata's last summer vacation before starting high school is coming up. Both of them, in their minds, are looking for an excuse to get together outside of school activities. Then they find an abandoned kitten and decide to take care of it, setting up a temporary cat bed on the grounds of a nearby temple they often pass by. Since neither of them can take him home with them, they come up with the idea that they will find a family for the kitten together.