Rain Leg Musha appears on floors 7 through 9 of Marukyu Striptease within the Midnight Channel on rainy days. It is unique from the Musha Shadows from Persona 3, replacing the Hakurou Musha. It uses the skill Rebellion to increase its Critical Rate in order do score critical hits on the party. It also absorbs all attacks but Electricity (its weakness), Light/Dark (both of which will be nullified), and Almighty. When defeated, it may drop Zero Board. Selling one Zero Board at Daidara will unlock the Ame-Otoko male armor in the shop, which has the lowest defense of male armors available from Marukyu Striptease but adds 100 HP when worn.
In Golden, it appears on floors 5, 6, 9 and 10 of Marukyu Striptease. It loses all weaknesses, instead resisting all elemental magic and nulling Light/Dark skills. It also gains Gale Slash. When defeated, it may drop Lepidolite, Lemon Quartz, and Olive Stone for trade at Shiroku Pub. Selling four Zero Boards is needed to unlock the Ame-Otoko.
Persona Q: Shadow of the Labyrinth
Rain Leg Musha appears in Nights 2 through 4 of the Inaba Pride Exhibit. It is weak to Ice, resists Wind and Cut, and attacks with single-_target Physical skills. When defeated, it may drop Musha Piece and Musha Helm. Musha Piece is used to create the Sin Blade for the P3 hero, and the Misericorde for Mitsuru. Musha Helm is used to create the Great Sword for Junpei and the P4 hero, and the Arm Guard accessory.
Persona Q2: New Cinema Labyrinth
The English version has a localization error, in which it refers to Hakurou Musha as Rain Leg Musha.