He woke up with amnesia. But who was he before his accident?

Romain has forgotten everything about his life from before the accident—even his parents, who seem rather unsympathetic. Why are they so stressed out? At school, to his great surprise, he discovers that he has no friends and that people make fun of him. The Romain of before the accident seems to have been completely forgotten, while the Romain of today is beset by incredible inner turmoil. Fortunately, a certain Adeline may be able to help him assert himself and shed some light on his life...