Immortality: As long as Ren maintains a certain state of mind, their Psychic Powers will keep them alive. Despite not being able to die, Ren can still be seriously injured however.

No Gender: Ren's body comes with in-universe Barbie Doll Anatomy, and they do not identify with either gender. Doesn't stop people from assuming Ren's female, a mistake which they may or may not correct depending on a whim.

Perpetual Smiler: Regardless of circumstance, Ren's face is almost always twisted in a light smile. Also a Stepford Smiler of sorts, as Ren realizes suffering people go through but must remain optimistic regardless.