Blind Cupid appears in the 2nd through 4th Chapters of the Void Quest within the Midnight Channel. It will attack and act as a healer for other Shadows in the battle. After being defeated, it may drop the Chirping Wings material. Selling 10 Chirping Wings at Daidara will unlock the Power Plate weapon for Kanji Tatsumi in the shop.
In Golden, it may also drop Lemon Quartz to trade at Shiroku Pub.
Blind Cupid appears in Area 3 and Area 4 of the second Theater, Junessic Land. It will frequently use Thorn Shackles to deal a large amount of damage to individual party members and inflict Agility Binds as well. Its Cupid Arrow drop is used to unlock the Manacle Whip for Ann Takamaki, Dai Naginata for the P3P heroine, Iron Fist and Hard Rocker for Makoto Niijima, Marble Axe for Haru Okumura, Bone Sword for the P4 hero, Steel Plate for Kanji Tatsumi, Bear Claw for Teddie and the Camo Poncho unisex armor. Its Cupid Crystal can be used to acquire the Jagato for Yusuke Kitagawa.