KOTOKO - Love a Riddle LIVE 2006
KOTOKO - Love A Riddle HD - 「おねがい☆ティー...
Onegai Teacher - Love a Riddle Arrang...
Onegai Teacher - Love a Riddle - Kotoko
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【KOTOKO】 LOVE A RIDDLE
KOTOKO - Love A Riddle
Onegai Teacher Love a Riddle
Lily - LOVE A RIDDLE of KOTOKO