cover, game ver.
It's originally performed by Nakano-ke no Itsutsugo (Hanazawa Kana, Taketatsu Ayana, Itou Miku, Sakura Ayane, and Minase Inori) and it served as the opening song for the first season of The Quintessential Quintuplets.

Gotoubun no Kimochi/五等分の気持ち - Muni, Towa, Noa, Hiiro, Haruna.

罪がないのならばそれが罪だ (tsumi ga nai no naraba sore ga tsumi da - being sinless is sin itself)
shojo kageki revue starlight

罪がないのならばそれが罪だ

cover, game ver.
the original song is by the heavy metal band X JAPAN.

full ver: https://soundcloud.com/user-533866428/kurenai-peaky-p-key?si=ba45f5196681461da7e46f412e4bf1a6&utm_source=clipboard&utm_medium=text&utm_campaign=social_sharing

Kurenai/紅 (game ver.) - Peaky P-key

BOOM-BOOM SHAKE!

cover
full: https://soundcloud.com/user-787037873/what-a-colorful-world-d4dj-remix?in=user-240092257-594722842/sets/special&si=4d53df615103468886c0de1a49f1d0f7&utm_source=clipboard&utm_medium=text&utm_campaign=social_sharing
It was originally created by Oishi Masayoshi and performed by Oishi Masayoshi, Taniyama Kishou, I☆Ris, Asaka, Amamiya Sora, Touyama Nao, Mikiha, Suzuki Aina, Nakamura Shugo, and Itoh Masahiro, serving as the theme song for the concert "Animelo Summer Live 2020-21".

What A Colorful World! [D4DJ Remix] Type 1

花びらメモリーズ (Hanabira Memories)

The Circle Of Butterflies by Morfonica

空色デイズ

*Music doesn't belong to me whatsoever*

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Daydream café

Dig Delight!/Direct Drive! Special Edition

カレンデュラ

Saisei Sanbikyoku (Hymn To Rebirth)- Starlight Kukugumi

i reached the free upload limit, new account: https://soundcloud.com/user-533866428

What A Colorful World! [D4DJ Remix] Type 1

djkunoichi4