Of course, the following songs, like Sunshine Girl and Wind, are cheerful and pure Japanese songs:

heavenly days, an episode in Love with the Sky, was sung by Aragaki Yui.

the theme song "Poetry of Birds" of "Air".

The Jade Bird.

confession for practice.

love cycle.

sakura sakura wants to see you.

the theme song "Dive into you" of Youth Journey.

the title song "cool wind" of "I really want to tell you".

the title song "My Secret" of "the president is a maid's adult".

"Honey Come", the title song of "Young".

the theme song "BRAVE BLADE" of "Riverside Tiger".

the theme song "the hill of the rising sun" of "the king of leisure".

Clannad's title song "Midtown".

HANABI, the title song of taritari.

The theme song "A Star" of "Flowers Bloom in Lvbo Yi".

The other side of the realm is the theme song of the other side of the realm.

These songs are very cheerful and pure Japanese songs, and I hope they can meet your needs.