Yuuji Kobayashi (小林雄次, Kobayashi Yūji) is a script writer and the series' script supervisor for Pretty Guardian Sailor Moon Crystal.
Yuuji has also written episode scripts for Suite PreCure and Smile PreCure!, as well as a few episodes of Saint Seiya Omega. 
- Act 1 - Usagi, Sailor Moon
- Act 2 - Ami, Sailor Mercury
- Act 3 - Rei, Sailor Mars
- Act 8 - Minako, Sailor V
- Act 10 - Moon
- Act 12 - Enemy, Queen Metaria
- Act 14 - Conclusion and Commencement, Petite Étrangere
- Act 16 - Abduction, Sailor Mercury
- Act 18 - Invasion, Sailor Venus
- Act 20 - Crystal Tokyo, King Endymion
- Act 21 - Complication, Nemesis
- Act 22 - Hidden Agenda, Nemesis
- Act 23 - Covert Maneuvers, Wiseman
- Act 25 - Showdown, Death Phantom
- He was born September 3, 1979, making him 34 years old at the moment.
- His hometown is Nagano, Japan .
- His blood type is A.
- Website (in Japanese)