The Lock

Japanese Name

錠前(ザ・ロック)

User

Tamami Kobayashi

Namesake^*

The Rock^[1] (The Who song)

Stats^?

Destructive Power

E

Speed

E

Range

A

Stamina

A

Precision

E

Developmental Potential

E

A: Very Good

B: Good

C: Average

D: Poor

E: Very Poor

Destructive Power	Speed	Range
E	E	A

Precision	Developmental Potential
E	E

“

The guiltier you feel, the bigger that lock gets... In other words, that lock is the "weight of your guilt".

”

—Tamami Kobayashi, Chapter 285

The Lock (錠前(ザ・ロック), Za Rokku) is the Stand of Tamami Kobayashi featured in Diamond is Unbreakable. The Lock is a Stand taking on the appearance of a metal lock hooked to the chest of its victims and which multiplies the feeling of guilt in their mind.

Appearance

The Lock takes on the appearance of a giant U-Shaped Lock with the character 銭 (Zeni, meaning "Money") engraved on the front. It appears hooked onto the target's heart, appearing fused into their chest. As with most Stands, only people with Stand powers can see it. Even the afflicted has no idea it is there.

Tamami can also hold The Lock as a tangible item, as shown when he is called by Rohan Kishibe to confirm that Josuke is cheating in their game of dice.^[2]

Color Schemes

The series is known for alternating colors between media, the information presented below may or may not be canon.

Lock(Gold)

Lock(Gray and brown)

Abilities

The Lock is an automatic Stand that has no combat ability whatsoever but perfectly fits Tamami's petty goals. It is odious, but surprisingly dangerous because it can push people into committing suicide.

Guilt Increase

By making someone feel guilty, Tamami can then summon The Lock which appears inside the victim's chest.^[3]

Afterward, their guilt is multiplied continuously and can add up with other accusations, represented by The Lock growing bigger and heavier.^[4] The Lock will stay indefinitely even if its away from Tamami,^[4] until the victim either feels so guilty they commit suicide,^[5] Tamami willingly cancels The Lock, or the source of the guilt disappears, usually meaning that the person "absolved" themselves by compensating Tamami with money or they learn that there is nothing to be guilty about.^[4]

The Lock on Koichi's mother and sister

Tamami can trick people into feeling guilty for perceived but false wrongdoings and even lock several people at the same time.^[6] On the other hand, Koichi could influence his mother into not feeling guilty anymore, cancelling The Lock at the same time.^[5]

Tamami also claims that if someone with The Lock on them attacks him, the damage will be reflected on the attacker, but this is never shown.^[4]

Lie detection

The Lock is shown to be capable of detecting dishonesty in a person, as shown during Josuke's cee-lo game against Rohan.^[7] Though this power isn't elaborated on in much detail, Tamami explains that The Lock will move if it senses honesty, and stays still if it senses dishonesty.

Chapters / Episodes

Manga Appearances

Chapters in order of appearance

Chapter 284: Koichi Hirose (Echoes), Part 1
Chapter 285: Koichi Hirose (Echoes), Part 2
Chapter 286: Koichi Hirose (Echoes), Part 3
Chapter 287: Koichi Hirose (Echoes), Part 4
Chapter 288: Koichi Hirose (Echoes), Part 5
Chapter 303: Let's Go Eat Some Italian Food, Part 1 (Mentioned only)
Chapter 382: I'm an Alien, Part 5
Chapter 383: I'm an Alien, Part 6
Chapter 412: Cheap Trick, Part 1 (Mentioned only)

Anime Appearances

Episodes in order of appearance

Diamond is Unbreakable Episode 6: Koichi Hirose (Echoes)
Diamond is Unbreakable Episode 14: Let's Go to the Manga Artist's House, Part 1 (Photo only)
Diamond is Unbreakable Episode 28: Highway Star, Part 1

Gallery

JOJO A-GO!GO!
The Lock's first appearance
The Lock fused into Koichi's chest
The Lock on Okuyasu Nijimura, after feeling guilty for punching Tamami
Ayana Hirose.png

The Lock on Ayana Hirose, after "accidentally" spilling hot tea on Tamami
The Lock's increase in size proportional to victims' guilt