I need a really good anime!

That's completely subjective & tastes are varied. How about a nice Список of animes you've enjoyed so we can find the similarities in them & give Ты a logical answer based on your personal tastes.

What kind of genres do Ты like & dislike? Do Ты prefer long или short animes? Are OAVs & one-shot Фильмы okay too? Do Ты have any Избранное tropes? Moe types?

Rurouni Kenshin

im just gonna name all the ones ive seen....dont worry i havnt seen alot andd umm ill see if Ты like them....

Хеталия (my all time FAV!)
Ouran High School Host Club
Full Moon wo Sagashite
Shugo Chara
Maid-Sama
Death Note

This is one Аниме that i really like, its called "Hanasaku Iroha" i absolutely Любовь that Аниме >_< anyways it depends on your taste, since im an otaku, Ты can just ask me your taste and ill answer it as quikly as i can. Oh yeah, there is a really good Манга Ты can read online called "to Любовь ru" there is also an Аниме for it but i prefer the manga. I have so much i can Список but it really depends on your taste.

Kuroshitsuji
Black Butler (Тёмный дворецкий) II
Dantalian no Shoka
Ao no Exorcist
Энджел Beats!
Ergo Proxy
Deadman Wonderland
Soul Eater
Another
Kaichou wa Maid-sama!
Hotarubi no Mori e
Durarara!!
[C] The Money and Soul of Possibility Control
Guilty Crown
InuYasha

All of them are masterpieces! Enjoy!

Mirai nikki. Durarara and black butler soung like your kind of thing.

a really great one Ты can get addicted to....
Code Geass

Naoki Urasawa's Monster
Blue Exorcist
Buso Renkin
Now and Then, Here and There
Twelve Kingdoms
Rurouni Kenshin
Full Metal Panic
Irresponsible Captain Tylor

danshi koukousei no nijijou
sonic x
air tv
d.n angel
antique bakery
Aoi Bungaku Series
darker than black
clannad
dazzle
death note
devil may cry
Descendants of Darkness
Durarara!!
fruits basket
full metal panic
fullmetal alchemist
gakuen heaven
gravitation
Хеталия axis powers
i Любовь my younger sister
dameko doubutsu
junjou romantica
kaichou wa maid-sama
kire papa
this ugly yet beautiful world
kuroshitsuji
loveless
lucky star
save me lollipop
nabari no ou
okane ga nai
ouran highschool host club
papa to Kiss in the dark
princess princess
sekaiichi hatsukoi
shuffle
shugo chara
sukisho
tokyo mew mew
true tears
vampire knight
the wallflower