Collaboration Stages · Stage 7
Threads of Love
愛で紡ぐキズナ
Threads of Love is a Battle Cats stage in Merc Storia: Showdown. It costs 115 energy and sends 9 enemy spawn lines — led by Wyvern (Enemy) as the boss — against a 250,000 HP enemy base, and clearing it rewards 16,215 XP. Its enemies carry the Floating trait, so cats that target it do the most work here.
Data updated: 2026-08-31
115Energy Cost
16,215XP Reward
250,000Enemy Base HP
5,600Stage Length
5Max Enemies
5.2Difficulty
Enemy spawns (9)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Fuu (Enemy) | 100% | 3 | 0s | 10s~20s | 100% | — |
 Celesse (Enemy) | 400% | ∞ | 6.7s | 23.3s~33.3s | 100% | — |
 Rei (Enemy) | 200% | 3 | 40s | 3.3s~6.7s | 100% | — |
 Norn (Enemy) | 400% | 3 | 0s | 0.7s~3.3s | 100% | — |
 Serum (Enemy) | 300% | 3 | 66.7s | 1.3s~3.3s | 100% | — |
| Serum (Enemy) | 300% | ∞ | 86.7s | 33.3s~46.7s | 100% | — |
 Wyvern (Enemy) | 100% | 1 | 80s | — | 100% | Boss |
| Rei (Enemy) | 200% | ∞ | 80s | 46.7s~53.3s | 100% | — |
 Ms. Sign | 1200% | ∞ | 900s | 900s | 100% | — |