Siscon -Saiminjutsushi Onii-chan to Namaiki Imouto | 妹コン ―催眠術師お兄ちゃんとナマイキな妹―

A certain day, when ProtagonistTachibana Kyouhei takes a nap, it has a strange dream. The self-styled devil "because i give hypnotism, conquer the world". Anyway the dream, Kyouhei returned a suitable answer.

When the talk ends, the impact is accepted and the consciousness is a blackout. Younger sister Ririka stood by the side when opening one's eyes.

Ririka to Onii-chan that falls asleep sloppily is severely noted. To a harsh younger sister, Kyouhei that tests hypnotism that seems to be obtained by half joke.

Then, Ririka moves as said by Kyouhei, it is convinced that a dream event was true.

Kyouhei that obtains dream power literally world domination ―― by using the power.

(Why such things only happen to me.)

Doing... It cooks by the underwear appearance, it strips off one's shorts and makes it to the side dish, intrude the toilet by force, teasing of lewd was begun to the younger sister partner.