Onii-chan Dakedo Ai Sae Areba Kankei Nai yo ne (As Long As There's Love, It Doesn't Matter If He Is My Brother, Right!?) is another of the incredibly long titled light novel series being adaptated into anime. Oniai for short, about a highschool aged guy who finds himself living with his long separated twin sister, is making its way to Japanese TV in October. See the new TV spot below.
Nyan Koi!'s Keiichiro Kawaguchi is directing the SILVER LINK production. Minori Chihara sings opening theme "SELF PRODUCER," while the end is "Life-ru is LOVE-ru!!" by Liliana Sisters.
Cast includes Ibuki Kido and Ryota Ohsaka (tsuritama's Yuki Sanada) as the leads, along with Asami Shimoda (Idolmaster's Ami and Mami Futami), Eri Kitamura (Madoka Magica's Sayaka) and Minori Chihara (Haruhi's Yuki Nagato).
An earlier preview: