Clemming Valentine

Clemming Valentine is a major character in the Null series, and serves as the biological father of Chris and Inko Valentine. Throughout most of the series, his character is presumed as killed-in-action as a mercenary during his role in the Sira-Aku War shortly after the birth of his children. Unbeknownst to the Valentine family up until the Heaven No More arc, he is revealed to be alive and seeking refuge in the Isle of Tears. Due to this discovery, Clemming is the crux of the No More Tears arc, as Chris' main objective is to find him.

Heaven No More arc
During the Jero army uprising, Inko tells Chris that their father is alive and is currently being held as a prisoner on Jero Island. After some deciding, Chris and Lardface journey to Jero Island to find Clemming and free him from Inko's clutches. As it turned out later on--and as Chris suspected, Clemming was not actually there; the photographs originally sent to Chris were actually of Rīkuu donning a disguise. It is later revealed by Roma, after being defeated by Lardface, that Clemming is in fact alive and explains that Inko was not able to capture him. Roma also reveals Clemming's location to Lardface, and the information of his asylum in the Isle of Tears.

No More Tears arc
As Chris struggled to make sense of the mortality of his father, he became very angry with the idea of his father being alive. He is told by Lardface that he deserves to go to the Isle of Tears and find Clemming. Chris decides to go, seeking answers to his questions, and seeking to resolve his vendetta against his father.

Upon finding Clemming, Chris is obviously unprepared to see him. He is first immobilized by shock, then is become with rage, and begins interrogating his father. After a long resolve in conversation with Clemming, Chris is filled with a deep sadness. Clemming then demands that Chris fight him to the death, with either Chris inheriting paternal honor, or Clemming to remain in solitude for the rest of his days. Chris accepts and they begin a short battle, in which Chris ends it by stabbing his father in his heart, mortally wounding him. After defeat, Clemming's last words to Chris before his death are "I longed for eternal solitude, and here my own blood has given me. There's something about it that makes me laugh."

Clemming's body was brought back to Lua Island by Maroon and buried at the Valentine homestead; in front of his grave are planted nightshade, and the etching on his tombstone reads "A brave but broken heart has finally found its solace, a heart to find rest forevermore."