If you liked the Fruits Basket anime, the Anime-Planet community thinks you'd like:
Having recovered from the injuries he had sustained, Zero returns to Cross Academy to resume his role as prefect. Though, not long after he resumes his role, members of the Supreme Vampire Council ambush Zero with the intent to execute him for the murder of the pureblood, Shizuka. Luckily when Kaname intervenes, he sends the council away and insists that they stay out of school affairs. However, whilst Kaname continues to hide the truth about Shizuka's death, there are others who grow suspicious of what happened that night and what the dorm president is hiding. Meanwhile, Yuuki begins to have flashbacks, leading her to investigate her blood-stained past: what will she find, and will she continue to be tempted by an offer from Kaname?
Both Vampire Knight and Fruits Basket share a few common traits. First off they both have a high school setting. It may not be the main setting for Fruits Basket but it is still strong. A single girl connects two worlds. The everyday world and a world of mystery. They also have the common setting of learning more about this mysterious lifestyle while the main female character learn about and grow to share her heart with two young men. If you are looking for something a little bit dark, a little bit mysterious, this would be a darker side to Fruits Basket.
Tatsuhiro Sato is a university dropout and a "hikikomori" – a person suffering from social withdrawal. To Sato’s dismay, his self-imposed exile from the world is rudely interrupted when a mysterious girl knocks on his door. She has charged herself with the task of curing Sato of his hikikimori ways! Now, as new problems ranging from hentai games to internet suicide spring up, can Sato manage to overcome his hermit-like ways, or will the imaginary N.H.K conspiracy force him to remain a hikikomori forever?
I would recommend this because both of these animes have a great plot/story and you really connect with the characters in these series. and both are in the twenty which wont take up too much of your time