Satoru likes the 2D world and loves 2D girls. One day, he took care of a weakened pure white dove. When he woke up the next day, a beautiful girl who he didn’t know was hugging him. Not only that, but she was naked. His imouto Sana comes to wake him up:

“Hey aniki, hurry and get u- ehhhh!!?＃！※‡？々♂☆♀!!?”

The game is based around two concepts: ‘love angel’ and ‘angel ring’. Love angels come from heaven to support love between people. They don’t have any special abilities except for flying. They feel a great sense of responsibility towards 2D maniacs like Satoru. If there is someone who loves someone else, but doesn’t have the courage to take the next step, the ‘angel ring’ floating around the love angel’s neck will begin to glow. It helps the love angel realize people’s feelings.

[From Hau~ Omochikaeri!]