Nemu

Nemukoi Minu or Nemu is a side charcter in Shonen Jump's U19

Perosnality
Nemu is usally asleep, so her personality is not well known. However it is shown that when she is not asleep she is quite bubbly.

Powers & Abilites
Sweet Dreams: Whatever Nemu dreams up, comes to reality, however what she dreams is random so it's often up to chance.