We are having Japanese guests over for the week and one of them mentioned this manga called "Besuke desu kebesu". It's about this very conservative school girl who apparently has a lot of thoughts about boys and there is a mischievous invisible demon that tries to make her acknowledge her thoughts and enable her to realize her imaginary fantasies or something?
Would any of you by any chance have ever heard of this manga and would know the title in either English or French?