Ani-Imo (Japanese: 兄が妹で妹が兄で。, Hepburn: Ani ga Imouto de Imouto ga Ani de, "Big Brother is Little Sister, Little Sister is Big Brother") is a shōjo manga series by Haruko Kurumatani.

He always thought of his sister as innocent and quiet, until one day a freak accident causes the two to swap bodies.

[6] On October 12, 2013 Yen Press announced at their New York Comic Con panel that they had licensed the series under the name Ani - Imo.

[10] Matthew Warner from The Fandom Post also gave the first volume of the series a B, criticizing the artwork as "bland" and "mostly chibi".

He calls the doctor's character "extremely predatory" and disliked the youthful appearance of the high schoolers.

She says that the artwork for Youta portrays a "tall bespectacled bishonen, while Hikaru is a big-eyed, purple-haired moe pixie".