Biwa Bokuboku 琵琶牧々

Small fey (construct, tsukumogami), neutral

Armor Class 12 (natural armor)

Hit Points 22 (5d6 + 5)

Speed 20 ft., hover 20 ft. (it drifts or “walks” like a minstrel)

STR 6 (−2) · DEX 14 (+2) · CON 12 (+1) · INT 10 (+0) · WIS 14 (+2) · CHA 16 (+3)

Skills Performance +7, Deception +5, Insight +4

Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks

Condition Immunities exhaustion (the living lute neither tires nor sleeps)

Senses darkvision 60 ft., passive Perception 12

Languages understands Yokai Speech, Common (or local dialect) and can produce musical “speech” through chord progressions but cannot speak words

Challenge 1

Traits

Musical Sentience. Biwa Bokuboku emits tunes rather than speech, using melodies to convey emotions or basic ideas. Creatures that listen closely can interpret these “musical phrases” with a successful DC 13 Wisdom (Insight) check.

Old Instrument. Once a prized lute, now awakened. It has advantage on Charisma (Performance) checks when playing or singing epic ballads, folk tunes, or anything related to old traditions.

Non-Aggressive Nature. Biwa Bokuboku refuses to attack and has no damaging action. If forced into conflict, it tries to defuse the situation or escape.

Actions

Soothing Melody. Biwa Bokuboku strums a calming tune. Each creature of its choice within 20 feet that can hear the music must succeed on a DC 13 Wisdom saving throw or become charmed by Biwa Bokuboku until the end of Biwa Bokuboku’s next turn. While charmed in this way, a creature has disadvantage on attack rolls against the lute’s allies (though Biwa Bokuboku itself is rarely part of a hostile group). On a success, the creature is immune to Soothing Melody for 24 hours.

Ballad of Twilight (1/Day). Biwa Bokuboku plays a haunting, minor-key piece that gently pulls at listeners’ consciousness. Each creature of its choice within 30 feet that can hear must succeed on a DC 13 Charisma saving throw or be lulled into a half-dream state for 1 minute. A lulled creature’s speed is halved, and it has disadvantage on Initiative checks if combat begins. The effect ends for a creature if it takes damage or if someone uses an action to shake it awake.

Bonus Actions

Musical Shift. As a bonus action, Biwa Bokuboku changes its tune—adjusting from lively festival music to a solemn dirge, or vice versa—causing creatures that are charmed or lulled by its magic to make a DC 13 Wisdom saving throw. On a failed save, the effect’s duration (charm or lull) extends by 1 round.

Reactions

Discordant Twang. When a creature tries to grab or strike Biwa Bokuboku (hit by a melee attack), Biwa Bokuboku can produce an abrupt, jarring chord. The attacker must succeed on a DC 13 Constitution saving throw or have disadvantage on its next attack roll before the end of its next turn.

Behavior & Lore

Biwa Bokuboku travels from village to village, busking in markets or lonely roads. Bystanders pay more out of curiosity than fear.

If threatened, it uses Soothing Melody or the Ballad of Twilight to defuse hostilities, then drifts away.

Its repertoire includes ancient epics (Heike stories, mythic romances, etc.). Hearing these from a sentient lute can be mesmerizing.

In rare cases, a friendly bard or minstrel may befriend Biwa Bokuboku, who happily duets with them, inspiring audiences to admiration or tears.

Lore

Haunted biwa (lute) spirit wandering at night, playing eerie melodies.

Far in the depths of Japanese lore, there exist yokai that take the form of aged musical instruments. After a century of silent service, they awaken with personalities all their own. Forget harmless spirits nibbling on rice cakes in a remote woodland—these musicians command the power of sound. Their “revenge,” you ask? Imagine your biwa suddenly striking up a jaunty tune at three in the morning—all without your involvement. And then decide for yourself whether neglecting your musical instrument is worth the risk.

Among these instruments is Biwa Bokuboku, a roaming yokai-lute that refuses to stay put. Unlike other tsukumogami that haunt deserted houses awaiting revenge, this biwa travels the land, playing its own melodies. Visually, it appears much like an ancient biwa but with a small pair of wooden legs, allowing it to saunter along—or even dance—while serenading the world with ballads of long-forgotten events. Some songs are sad tales, others recount old battles, and still others evoke an inexplicable sadness.

From Yokai Bestiary 5E, p. 48 · Fern Flower Press