Goodnight Sex 2 A forbidden signal to take your brother to the bedroom!

Because what was confessed to her was a lie...The day she crossed the line by putting her younger sister Yui to sleep, these were the last words that Yui confessed to her.Even after several days, those words never left the beginning of the chapter, but Yui... He acted as if he didn't remember what happened that day. Seeing her innocent appearance, Akira vows to stop wishing for a relationship with her that is more than that of brother and sister. One day, he sees Yui holding her girlfriend's sleeping pills. Akira learns from Yui that if she drinks this, she will be able to sleep soundly until morning. Night of the day….