I'm recently watching the anime Mirai Nikki and I'm on episode 4 (17:44)

I think it's all about a guy who portrayed hisself a bystander...And he have a future diary...

And there's this girl who's a yandere — named...Yuno Gasai, she's cool xD I think she has the diary of love? ahehe I forgot!!

Haha, I heard that there's a season 3???? meh, donno..Im just watching this in Youtube

Sooo yeah, Mirai Nikki!!