Knock, knock, knock ima wa dare no egao wo Machikogarete DOA wo akeru no? Lock, lock, lock kimi no egao tokku ni Wasurete ita hazu datta no ni Sayonara nante kotoba dake Kono kokoro ni wa kizande aru you and I Knock, knock, knock ima wa boku no egao wo Machinozonde iru koibito ga iru Luck, luck, luck kako wo wasureru hodo ni Love, love, love koi ni ochite iru kedo Modoreru nara ima sugu ni Kimi no moto he to hashitte yuku kara Boku no first love Wasurerarenai Wasuretakute mo zutto Kimi ga yomigaeru Boku no first love Kimi ga first love Ima mo zutto You are my first love Eien ni boku no first love My first love