<infobox> <title source="ename"> <format><br /></format> </title> <image source="image" /> <header>Information</header> <data source="media"> <label>Used in</label> </data> <data source="released"> <label>Release Date</label> </data> <data source="type"> <label>Type</label> </data> <data source="language"> <label>Language</label> </data> <data source="length"> <label>Length</label> </data> <data source="tracks"> <label>Number of Tracks</label> </data> <data source="label"> <label>Label</label> </data> </infobox> <noinclude></noinclude> 'Happy! Lucky! Dochy!' is a single containing the opening theme for Higurashi no Naku Koro ni Kira.

Track listing