Carmilla · Library

Go to the actual battle room in Library. The first encounter in Main Hall cannot replace this battle. During consecutive attacks, prioritize leaving the currently covered area and find new gaps as fresh attacks appear on the left, right, and center; do not drain your MP chasing the invincible main body, or mistake the end of one attack wave for the end of the whole cycle. Counterattack only after seeing the entire sequence end and the main body enter a pause; its invincibility ends at this point. First confirm that lingering attacks are not blocking the route, then attack briefly or replenish supplies; stop attacking immediately when it starts another move. Defeat Carmilla, then absorb the post-battle reward orb to obtain Blood Spikes.