edit_summary: /* Youma Summary */
diff.text: *'''Name source:''' Derived from the name of the Greek goddess Thetis who was one of the most well-known Nereids (sea nymphs) that helped sailors.
diff.text: *'''Episode:''' 11 (''I Want a Boyfriend, Too! A Trap on a Luxury Cruise Ship'' / Cruise Blues)
diff.text: *'''Death: ''' [[Sailor Mercury]]’s Sabão Spray (Mercury bubbles) then [[Sailor Mars]]’s “Fire Soul (Mars Fire Ignite)” attack followed by by [[Sailor Moon]]'s [[Moon Tiara Magic|Moon Tiara]] .