SpongeBob SquarePants Anime OP 1 but it's Kurokami Fubuki's cover
I've decided "Why not?", since the song was actually part of my childhood, even before Narmak's animation. Although, I'm not too familiar if there are any rules regarding using the covers of the idols from their singing streams. If this video somehow violates any rules, I won't hesitate to take this down.
Kurokami Fubuki artwork by 仙狐:
https://twitter.com/i/web/status/1288595154929176579
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AUDIO SOURCES:
Original animation by Narmak:
https://www.youtube.com/watch?v=FkL4CjckRZ0
Kurokami Fubuki's Singing Stream Archive (10/23/2020):
https://www.youtube.com/watch?v=PgFu74Ppj4g
Colors of the Heart Karaoke by カラオケ歌っちゃ王:
https://www.youtube.com/watch?v=nIiztMk4lck
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CHANNELS RELATED TO THE SOURCES:
Shirakami Fubuki's channel:
https://www.youtube.com/channel/UCdn5BQ06XqgXoAxIhbqw5Rg
Narmak's channel:
https://www.youtube.com/channel/UCtMeM-NXm5Fsne1G-cU1tNw