28岁的无业青年高岛圭佑(浅利阳介 饰)热衷于在网络上发表他和妄想女友“小春”的交往故事及照片,理所当然小春子虚乌有,那些照片也全是他利用各种道具和角度摆拍出来的赝品。当然他十分享受这样的生活,妄想女友又怎样?又不会吵架,又不会分手,虚幻的爱情反而更加快乐完美。当然作为青梅竹马的镰仓由纪(木南晴夏 饰)也沉浸在“妄想男友”的游戏中。转眼来到了四月,满脑子不切实际幻想的单身汉圭佑一觉醒来,发现妄想女友小春(广濑爱丽丝 饰)竟然实实在在站在他的面前! 这可以算做梦想成真吗?单身汉圭佑的人生即将彻底改变……Keisuke is 28 years old and has never had a girlfriend. However, he posts about his imaginary girlfriend Haru on social networks every day. One day Haru appears in front of him and he is not sure if she is real or just a fantasy.