What anime is a girl with tiger teeth with short hair and big breasts?

The girl with tiger teeth with short hair and big breasts is an anime "Sister can't be so cute". Sister can't be so cute is adapted from Wen Zhi's light novel of the same name. The hero of the story is Kousaka Kyousuke, an ordinary senior two student, but she has a junior two sister, Kousaka kirino, who is a fashion model. One day, this brother was told an unexpected "worry" by his self-important sister. It turned out that Tong was a budding comic book and girl game lover, but he was too concerned about other people's eyes and didn't want to disclose his interests, so he discussed with his brother and decided to help his sister.