Shogo Mikadono is the son of an industrial magnate named Kumagoro Mikadono who passed away. As a final wish, Kumagoro imposed a condition Shogo must meet before he can inherit the family legacy—find a female mate at school. Shogo transfers into a school to fulfill that condition. However, he learns that he has a younger sister from whom he was separated at birth. He does not know what his long-lost sister looks like, but she happens to be one of the students at his new school.

Season 1 Episode 2 - My Sister and the Moonlit Dance

After the mysterious phone call the person claiming to be his sister, Shogo school life gets more hectic with the arrival of a new transfer student. Air Date : 13th-Jul-2012

Season 1 Episode 1 - The Voice of My Unfamiliar Little Sister

During his father’s funeral, Shogo hears a voice outside his window claiming to be his little sister, before he has a chance to learn more, he is told the conditions of his inheritance. Air Date : 6th-Jul-2012  Read More

Season 1 Episode 2 - My Sister and the Moonlit Dance

After the mysterious phone call the person claiming to be his sister, Shogo school life gets more hectic with the arrival of a new transfer student. Air Date : 13th-Jul-2012  Read More

Season 1 Episode 3 - My Sister's Seduction

The question of Shogo's sexual preference is causing Miyabi and Rinka to go overboard on showing the appeals of a woman. Air Date : 20th-Jul-2012  Read More

Season 1 Episode 4 - My Sister's Hero Is Her Onii-sama!

Shogo has ruined his relationship with Miyabi; after letting Konoe know about his secret, a new problem has arisen. Air Date : 27th-Jul-2012  Read More

Season 1 Episode 5 - My Little Sister Won't Let Me Sleep

He thought it was over but his little sister keeps calling. Shogo discovers someone else has the same prototype phone as Konoe. Air Date : 17th-Aug-2012  Read More

Season 1 Episode 6 - My Neko-mimi Maid Sisters

Lyrical Sisters is on the verge of shutting down, Shogo puts together and executes a plan worthy of the Mikadono name. Air Date : 24th-Aug-2012  Read More

Season 1 Episode 7 - My Little Sister Is Disciplined and Beautiful!

Using the school broadcast system, Shogo’s “sister”, has requested he stops looking for her or she will reveal damaging secrets. Air Date : 24th-Aug-2012  Read More

Season 1 Episode 8 - My Sister Resisted

Kunitachi might be the Shogo’s sister but he can’t get close to her. Ikusu suggest that Shogo and Kunitachi spend time outside the school to have her drop her guard. Air Date : 31st-Aug-2012  Read More

Season 1 Episode 9 - Surprise Attack! Little Sister Warning!

Shogo is getting a new neighbor and an unexpected surprise. Air Date : 7th-Sep-2012  Read More

Season 1 Episode 10 - My Blooming Sisters

When all of Shogo’s potential wives are invited to the same party, things do not go as planned. Especially when he finds a trusted member is planning to overthrow his inheritance of the company Air Date : 14th-Sep-2012  Read More

Season 1 Episode 11 - My Sister's Trap

With all the lies, conflicting stories, and people trying to ruin his inheritance, Shogo is breaking down. To add to his worries, Kannagi is making outrageous demands. Air Date : 21st-Sep-2012  Read More

Season 1 Episode 12 - My Sister Was Always Beside Me

With the help of Ikusu, Shogo has finally put the clues together on who his real sister is. Air Date : 28th-Sep-2012  Read More