BOA "Jewel Song"
Alan "My Life"
Oriental Sugar-coated Chocolate "Let's meet again next time": the lyrics inside this song touched me the most: "Maybe one day we'll gradually forget / So I'd rather treat it as a beautiful past / Falling in love with you is my future pride / I'd like to walk towards tomorrow with tears on my face / So here we are parting at this time / And in my heart, I know that I mustn't see you again / So I'm saying, 'Let's meet again next time'/ This is my way of saying goodbye / Feelings are not so easy to part with / Instead, it's better to keep it as a precious memory ......"
Final Fantasy 12 - Kiss Me Goodbye RIKKI "Sukiyaki Dane": The songs in Final Fantasy are all really good. Good
Jun Shibata "Butterfly"
Maya Sakamoto "Wolf Rain"
Kiyo "Insensible" Miko Manto "Farewell": two of my favorite songs lately, worked very hard to learn these two songs and they're great!
Ikimo no Gari (Bio Unit Leader) "Sakura"
Owako "First Love" "Yasashi no Hana" "Your Sky" "Garnet"
Eiko Matsumoto "This Year's Winter"
Mayako Fujita "Mizukaze Ship" "Luck of the Fortune"
Shigetsukaoure "Cross Talk"
Kumagi Akari "しんきろう"
Ichigo Myo "かざぐるま" "Crying with me"
JUJU "Sakura Rain" "S.H.E" "Tomorrow ga Kuru Naru"
YAMAMAMOTO SAYAKA "Tsunkute no Yoritsu" "Threads of Flower Fire"
Shukumi "Sakikasetsu wa いけななななななな flower" "Song of Heart and Lights" "Hoshi Akari":Shukumi s songs are all great and worth collecting.
Sugawara Sayuri "Sukenai ni nare nakute": this song is from "Can't be honest with each other" in which Jaejoong appeared, it's good~~~and this song "Eternal Love" is also good.
Baechigi-Crying and laughing and crying again
Isayama Mitsusei's "Flower Heart Poem"
Kiroro's "ひとつつぶの涙": a song I accidentally found, a very good song. Speaking of "Later" and "Love You Very Much" should sound familiar to some, Kiroro is the original singer of them.
Miho Kato "love is"
Gackt "に逢いたくて"
Amuro Namie "Wild" "Get Myself Back"
I hope this helps, these are some of my favorite Japanese songs, and I don't get tired of listening to some of them even after years. But seriously Ayumi Hamasaki, Kouda Raiki and those guys have really good songs.