| Act 21 - What Did You Do to Ami!|
|Romanji:||Ami-chan ni Nani o Shita?|
|Japanese Air Date:||February 28, 2004|
|Previous Episode:||Act 20 - Hina was Mamoru's Fiancée...|
|Next Episode:||Act 22 - Ami Becomes an Enemy|
"Act 21 - What Did You Do to Ami!" is the 1st episode of Pretty Guardian Sailor Moon. It aired in Japan on February 28, 2004.
Usagi fakes having a cold to avoid going to school.
Meanwhile, Makoto goes to Ami's apartment since she hadn't gone to school either. Makoto and Ami go to the amusement park and then Motoki shows up there. When Ami goes unconscious, Makoto and Motoki take her to hospital. She decides not to tell the other Sailor Senshi.
- Makoto uses a payphone to call the other Sailor Guardians when she could have just used her Teletia S.
- The place where Dark Mercury first appeared is a common shooting site for tokusatsu dramas.
- Later in the episode when Ami escapes from the hospital, the nurse's expression became popular among Japanese fans.
- The hand gesture that Ami makes at the very end of the episode appeared in many printed publications about PGSM.