In Volume 4 (The Strongest Swordsman), the story intensifies as Tanjiro and his companions face powerful demons within the eerie Tsuzumi Mansion. This volume introduces the wild and unpredictable Inosuke Hashibira, whose aggressive personality adds new energy to the team. The battles become more strategic and visually breathtaking, showcasing unique fighting styles and abilities. Tanjiro’s Water Breathing techniques evolve as he learns to adapt under pressure. Readers also get deeper insight into the structured hierarchy of demons and the terrifying strength of the Twelve Kizuki. The bond between the trio slowly begins to form despite their clashing personalities. Action sequences are fast-paced and emotionally charged. The series continues to explore themes of resilience and growth through adversity. The dark fantasy atmosphere grows even more immersive. This volume delivers intense combat while strengthening the foundation of an unforgettable team dynamic.