Volume 4

The Strongest Blade (強靱な刃) is the fourth volume of Kimetsu no Yaiba.

Chapters

 * 26. Bare Handed Fight
 * 27. Hashibira Inosuke
 * 28. Emergency Summon
 * 29. Natagumo Mountain
 * 30. Puppet Dolls
 * 31. Who's going to step forward if I don't step forward myself?
 * 32. Sharp Stench
 * 33. Pain, going forward while writhing
 * 34. The Strongest Blade

Synopsis
After a fierce battle with a demon inside a maddening house of ever-changing rooms, Tanjirou has a chance to find out about the fighter in the boar-head mask. Who is this passionate swordsman and what does he want? Later, a new mission has Tanjirou and his compatriots heading for Mt. Natagumo and a confrontation with a mysterious and horrifying threat…