Ask for a anime songs that can be used as a ringtone? Something beautiful. This is as sunny as the theme song of "Dazzling Xia Na".

There are many great songs in Guarding Sweetheart.

はじまりの Wind —— The story of the wind in rural Cai Yun

CRAWL-VELTPUNCH (king of hiding)

Light-Irina Kaptelova (Hidden King Edition)

Dani California-red hot chili peppers (Death Note)

Honey honey SIMO (XXXH0LIC)

I'm alive.-Becca (Black Deacon)

Innocent days-Hitomi (Lu episode)

Masquerade-(Lu Ji)

Transfiguration-Asriel (Phantom Boy OP)

I still believe ~ sigh ~-Yumi Shizukusa (Conan)

Still Doll-Kanon Wakeshima (Vampire Knight)

You are my love-Makino Yui (a book of remembrance)

ィァィ Umbrella-テゴマス (forget which one)

Shacheng-Kanon Wakeshima (Vampire Knight)

Wheels -ロンド-ON/OFF (Vampire Knight)

Journey without Love-Hikida Kaori

モノクロのキスシド (black deacon)

Xiao Zhi Car-Gundam Seed Episode

Graduation ~ さよならはのためにタッキー & Wing (Inuyasha episode)

ふたつののととぃ Crime-On/Off (Vampire Knight)

Continuing Story-Hitomi (Lu Episode)

Too much ... that should be enough.