![](https://cdn.animecharacters.io/images/characters/large/15291-bd1e6fd0.jpg)
Jun Onoda (小野田 淳)
Makoto's 17-year-old sister (currently 19). Initially she has a rather romantic look on a relationship, and her quest for true love lets her drift through a number of affairs before she finally finds happiness with her first boyfriend, Yosuke. Her experiences and introduction into the sexual world are followed throughout the series. (Source: Wikipedia)