, is a Japanese visual novel originally developed and released by D.O. in 1999. translated and published the English version in 2002. which falls into the subgenre of "nakige". The player assumes the role of Takamichi Toudou. Most of the gameplay is spent reading text, representing the story's dialogue. In the PSP version, the text is accompanied by character sprites, which represent who Takamichi is talking to, over background art. Being an erotic visual novel, relationships between characters become sexual; this include the sexual relationship between Takamichi and his younger sister Kana Toudou.

Plot

suffers a chronic kidney disease that requires her to be hospitalized for long periods of time. Although her older brother resents the resulting diversion of attention from their parents, he changes his attitude towards Kana during a family trip; Kana and her family are separated, so Takamichi must find her in the forest. During the searching process he makes a promise to always will protect Kana no matter what.

Takamichi falls in love with his classmate while studying in Year 5, so he writes her a love letter and leaves it on her desk. However, other classmates know about his feelings towards Kashima and start teasing him the next day. He believes that Kashima deliberately showed the love letter to everyone,

Development and release

Kana: Little Sister is the first visual novel developed by D.O., According to Japanese magazines BugBug and Tech Gian, the novel portrays a feeling of caring for each other that goes beyond "love" or "physical attraction." The team also stated that the game has a gentle atmosphere. In 2003, Panther Software announced plans to release an Xbox port, which was ultimately cancelled.

As reported by GNN News and Game Watch in July 2010, Cyber Front announced that the game would be ported to the PlayStation Portable in two different editions, Regular Edition and Limited Edition. The latter was to be bundled with the game's soundtrack and art book. The PSP version of the game featured the character designs and artwork from the original PC version of the game, although with re-recorded voices and artwork created specifically for it. Both editions were released on October 7 2010. Au Yeung Yu Leung of IGN Japan voted the game as the best video game of 1999,