Kawaii dake ja Nai Shikimori-san

Shikimori seems like the perfect girlfriend: cute, fun to be around, sweet when she wants to be… but she has a cool dark side that comes out under the right circumstances. And her boyfriend Izumi loves to be around when that happens!
(Source: Kodansha USA)
Notes:
- Chapter count includes 25 extra chapters.
- The work was first self-published by the author on their Twitter account.
- It began its official publication in Pocket Magazine on February 2, 2019.
- Won 5th place in Tsugimanga 2020 Award in the Web Manga Category.