Source
Event Period - Forgotten Shadows Vortex: Feb 14, 0:00 PST - Feb 27, 23:59 PST

Mission 1 Haunting Dreams (25 Energy) : Glowing Rose, Enchanted Bow, Love Arrow
Mission 2 Dark Shadows (30 Energy) : Enchanted Bow, Love Arrow, Silk Handerchief
Mission 3 Dawk Breaking (35 Energy) : Glowing Rose, Enchanted Bow, Love Arrow, Silk Handkerchief, Broken Pendant

Bow of Fervor: Boosts Spark damage (40%) and Spark damage may (50%) slightly boost BB gauge (1-2 BC)

• Glowing Rose x40
• Enchanted Bow x25
• Love Arrow x25

Bow of Devotion: Boosts Spark damage (80%) & Spark damage slightly boosts BB gauge (1-2 BC) and restores HP (100-200 HP)

• Bow of Fervor x2
• Glowing Rose x60
• Enchanted Bow x40
• Love Arrow x40
• Silk Handkerchief x30

Bow of Passion: Boosts Spark damage (120%), Spark damage slightly boosts BB gauge (2 BC) and restores HP (250-350 HP) & boosts BB Atk (100%) when Sparks have exceeded certain amount (15) for next turn

• Bow of Devotion x2
• Enchanted Bow x50
• Love Arrow x50
• Silk Handkerchief x40

Box of Chocolate: Hugely boosts HC and BC drop rate (40%) for 3 turns

• Chocolate x1
• Glowing Rose x10

Total amount of items to craft the spheres :

• Glowing Rose x280
• Enchanted Bow x230
• Love Arrow x230
• Silk Handkerchief x100