Kono Naka ni Hitori, Imouto ga Iru!

The Voice of My Unfamiliar Little Sister

25min - At his father's funeral, Shogo is startled by a voice outside his window. The voice claims to that she is his little sister, but she'll only tell him who she is for a price.

My Sister and the Moonlit Dance

25min - Shogo receives a mysterious call from the person who claims to be his sister. Meanwhile, his school life gets a jolt with the arrival of a new student to his class.

My Sister's Seduction

25min - Shogo's sexual preferences come into question, causing Miyabi and Rinka to overextend in their efforts to show him the appeal of a woman.

My Sister's Hero is Her Onii-sama!

25min - Shogo's relationship with Myabi lies in ruin.  A new problem arises after he tells Konoe about his dilemma.

My Sister Won't Put Me to Bed

25min - A sleep deprived Shogo discovers someone else has the same prototype phone as Konoe and makes a discovery about Mei.

My Neko-Mimi Maid Sisters

25min - Shogo concocts a plan to prevent Lyrical Sisters from shutting down, but he'll need everyone's help to pull it off.

My Little Sister is Disciplined, Polite, and Beautiful

25min - Shogo's "sister" demands that he stop looking for her or else she'll reveal damaging secrets via the school broadcast system!

My Sister Resisted

25min - Kunitachi might be Shogo’s sister, but he can’t get close to her. Ikusu suggests that Shogo and Kunitachi spend time outside the school to have her drop her guard.

Surprise Attack! Little Sister Warning!

25min - Shogo is getting a new neighbor and an unexpected surprise!

My Blooming Sisters

25min - Things get messy when all of Shogo's potential wives are invited to the same party. Just when he thinks things can't get any worse, he gets some bad news.

My Sister's Trap

25min - Kannagi’s outrageous demands in addition to all the chaos and adversity he is already facing is causing Shogo to lose his mind!

My Sister Was Always Beside Me

25min - With Ikusu’s help, Shogo finally discovers the identity of his real, blood related sister. However, this will come with its own set of issues.

OVA: Brother, Sister, Lover