Karin-po

The manga centers on two sisters. Karin, the older sister, is about to graduate from college, but hasn't yet decided where she will work. For now, she is content with taking care of her younger sister Kurumi, which she has done since Kurumi was little. When Karin finally makes an important decision regarding her future, tragedy strikes their family that will change the course of their lives.

(Source: ANN)