Harahara Sensei: The Ticking Time Bomb Value Pack (Complete Volumes 1–4)

A missing sister. A desperate teacher. And a debt that’s paid off in a big way!

Anyone who says chemistry class is boring hasn’t met Azusa Tsukumo yet.

By day, a shy teacher at a provincial high school; by night, a woman searching for answers that lead her deep into Tokyo’s dangerous underworld.

In *Harahara Sensei – The Ticking Time Bomb*, Yanagi Takakuchi tells an uncompromising action-thriller full of dangerous secrets, criminal schemes, and a protagonist who proves that you can be downright dangerous even without martial arts training.

With this manga pack, you’ll receive the complete series with all four volumes—and thus the entire explosive story in one affordable collection.

When a chemistry teacher declares war on the yakuza

Azusa Tsukumo leads an unassuming life.

As a reserved chemistry teacher, she teaches at a high school in her home province and tries to get through the monotonous school routine.

She’s neither particularly assertive nor someone who willingly seeks confrontation. Or so it seems.

But when her beloved younger sister, Ruka, suddenly vanishes without a trace, Azusa’s life is turned completely upside down.

The search for answers leads her to Tokyo, where she encounters a yakuza and soon realizes that she has stepped into a world full of violence, criminal entanglements, and dangerous secrets.

A world where ordinary rules no longer apply.

But Azusa has no intention of simply giving up.

Because even though she isn’t an experienced fighter, she possesses a skill her opponents would be wise not to underestimate:

An extraordinary knowledge of chemistry.

And suddenly, her scientific knowledge turns into dangerous weapons.

Armed with homemade explosives, her sharp mind, and a healthy dose of desperation, Azusa takes on people who are far superior to her in both physical strength and numbers.

What begins as a desperate search for her sister turns into a merciless battle against the underworld.

But Azusa isn’t the only one with something to hide.

The deeper she delves into her opponents’ schemes, the clearer it becomes that there’s more to Ruka’s disappearance than she initially suspected.

Time is running out. Nerves are on edge. And Azusa is no longer willing to put up with everything.

Here’s what you can expect:

• The complete manga series in one pack: Includes all four volumes—1, 2, 3, and 4—of Harahara Sensei’s *The Ticking Time Bomb*.
• An explosive action-thriller: A thrilling mix of action, crime, drama, and mystery.
• An Unusual Heroine: The shy chemistry teacher Azusa Tsukumo rises to the occasion as she searches for her sister.
• Yakuza vs. Chemist: Dangerous gangsters face off against a woman who knows how to use her scientific knowledge as a weapon.
• A desperate rescue mission: The mysterious disappearance of her sister Ruka leads Azusa deep into Tokyo’s violent underworld.
• Dangerous experiments and explosive confrontations: Chemistry becomes a decisive advantage in a battle where Azusa has almost nothing to lose.
• Dark secrets and surprising twists: Behind the events lie further truths waiting to be revealed.
• By Yanagi Takakuchi: A self-contained, action-packed manga series featuring an extraordinary protagonist and an uncompromising story.

This chemistry exam is a matter of survival!

Harahara Sensei turns the classic action story on its head without hesitation.

Here, the focus isn’t on a hardened professional killer, a battle-hardened mercenary, or an all-powerful hero.

Instead, the story follows an ordinary teacher who, due to a personal tragedy, finds herself in an extraordinary situation—and in the process discovers a side of herself that no one could have anticipated.

The combination of brutal underworld action, an emotional rescue mission, and Azusa’s unusual abilities makes for a thrilling story in which wits are at least as important as brute force.

Harahara Sensei – The Ticking Time Bomb: Manga Pack is ideal for fans of action, crime, drama, and mystery manga who are looking for a self-contained story with a fast pace and an unconventional main character.

All four volumes. A missing sister. A teacher who won’t give up.

And for the Yakuza, a rather unpleasant realization: You should never underestimate someone who knows how to make things explode.