[Machine Translation] What type are you? All 4 singles by blood type will be released at the same time! All four songs were conceptualized, produced, and written by Koji Tomono. Vocalists were selected by audition based on their character, atmosphere, and voice quality, and from the viewpoint of a woman who is definitely a type-B type. Includes a 16-page booklet (also substantial enough to read about blood type). CD ConnecteD version (limited time only) is available.