KOKORO no Mondai (ココロの問題) (Kokoro no Mondai) (Problem of the Heart), by toutou, is the 5th Ending theme of the anime Keroro Gunso. It is used from episodes 79 to 103.


This is a single.

Toutou, the singers, of this song appear in their Keronian forms in the album art: Kokoro no Mondai



kero-! kero-! kero-!

3,2,1, FIRE!

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