4-Panel Manga 'Oneechan ga Kita' to be Animated

On the official site of "Manga Life" magazine, a cover scan has been posted announcing that a TV anime adaptation of "Oneechan ga Kita" has been green-lit. The anime is expected to begin airing January 2014. No other details have been given at this time.

Source: Manga Life official site, Cover scan (top left for announcement)

Oneechan ga Kita on MAL