Rip Tristan

""If you join me, then I'll deactivate my ability. If you don't, then that wound... won't heal until I'm dead.""

Rip Tristan (リップ＝トリスタン) is a member of Under. He is a Negator with the alias Unrepair.

Appearance
Rip has mid-length blond hair and wears an eye-patch-like mask that covers most of the right side of his face. He wears a dark purple suit with a white tie, brown finger-less gloves, and a white t-shirt underneath. Blood is often seen trailing out from his eyepatch. He has a small pair of blood bag earrings which hang off of each ear. He's regarded as being a bit of a pretty-boy.

His legs are the Artifact Blade Runner.

After becoming a child, he loses the suit and wears a hoodie, shorts, and sneakers.

A few months later, in the Unbelievable Arc, he is no longer seen wearing the eyepatch.

Personality
Rip is very playful and methodical. He is introduced as being somewhat merciful, giving Unseen a chance to join him instead of killing him with his ability, though he's later shown to have no issue killing Negators he deems useless. He also has some sort of grudge against The Union, seeing how he refuses to hand over Unseen. That said, he also is shown to be nice to enemies he respects, and even offers Fuuko and Andy spots on his team despite their attempts to kill him.

His kind hearted side was shown further when he was with Akira Kuno, when Akira used the Time Control Artifact to bring him back to his adult body, he told Akira that they can possibly revert him and save Akira's life, this is also shown with Leila.

Latla states that Rip will continue to be the Villain and not the Hero because he will do whatever it takes to save Leila, implying he was a truly good person as a Surgeon before her death took place.

History
Prior to joining Under, Latla lost her sister, Leila, due to unknown circumstances. Latla and Rip were devastated due to her death, with Latla blaming herself for predicting the fortune that led to Leila's death and Rip blaming himself for operating on her and unintentionally triggering his Unrepair abilities. The two decided to join Under to find the Ark, redo reality and bring Leila back from the dead.

Powers & Abilities
Unrepair: Allows him to make any wound fatal by negating the ability to heal. This includes any attempts made at his life by a target that knows killing him will deactivate his ability.

Master Knifemanship: Rip is very skilled at using his scalpels in combat, using them both as blades and as projectiles. He uses them in conjunction with his negation so that any cuts he creates will never heal.

Equipment
Blade Runner: An artifact that Rip wears on his legs which allow him to shoot blades. It also has thrusters that allow him to fly.

Scalpel: Rip has a plethora of scalpels on his person. He uses them both as blades and as projectiles.

Trivia

 * Rip ranked 7th in the First Popularity Poll.
 * His name has a double meaning. It could mean Rip, as in a large cut, or Rip, as in the acronym for "Rest in Peace".