Rail Wars!

Naoto Takayama joins classmates to form a group at the National Railway Central Academy

Naoto Takayama travels to enroll in Japan's National Railway Central Academy, where he meets Aoi Sakurai and Haruka Koumi. They befriend each other and form a group with Shou Iwaizumi. The four participate in shooting practice and a coal-throwing test, becoming the only group to pass by achieving a speed of 100 km/h. During their final on-site training, they catch a pair of thieves. As a result of their success, they are granted participation rights to the OJT.

Takayama and friends guard Tokyo Station against a bomb threat for one hundred million yen.

Takayama and his friends join the Public Safety Force under Nana Iida. Initially deployed to Yokohama Station, they are reassigned to Tokyo Station after the perpetrator reveals the true target. The group must locate a bomb before three o'clock in exchange for one hundred million yen. After failing to find it in lockers, Iwaizumi suggests checking a dog carrier at the lost and found. Sakurai and Takayama work together to defuse the device, using liquid nitrogen to freeze the circuits with five seconds remaining. The perpetrator is arrested, and Takayama is appointed deputy squad leader.

The Defense Four assist Mari Sasshō in locating her missing friend Kaori through auditory clues.

Mari Sasshō, a restaurant worker near the defense headquarters and future Academy student, introduces herself to the team. Her friend Kaori disappears, prompting Mari to request the Defense Four's assistance. After reviewing reports without success, Mari detects Kaori's ringtone in the lost and found. Using her exceptional hearing, she identifies specific station details from an audio recording on the phone. The team searches warehouses along the identified line, discovering Kaori tied up as a crime scene witness. They defeat the criminals involved and transport Kaori to the hospital for medical care.

Defense Four guards idol Noa Kashima who faces an assassination attempt during a beach performance.

The Defense Four are assigned as guards for JNR idol Noa Kashima during a beach performance. After protecting her from a fan at the station, Takayama faints, prompting Kashima to gift him a stamp collection book. During practice, flash paper is burned as a threat. On the day of the show, a criminal disguised as staff attempts to stab Kashima on stage. Iida quickly improvises to make the attack appear part of the performance. Takayama is stabbed but survives because the stamp book in his chest pocket stops the blade. Ultimately, Kashima appears to develop romantic feelings for Takayama.

Takayama and Sakurai pursue a Tokyo station bomber accomplice while missing a planned trip.

Following morning shooting practice with Sakurai, the Defense Four unit, comprising Takayama, Sakurai, Iwaizumi, and Haruka, is assigned to locate an accomplice of the Tokyo station bomber. Takayama and Sakurai identify and chase the suspect, awaiting backup from the public safety force. The target escapes into a forest after exiting a train, forcing the pair to spend the night at a station, which causes Takayama to miss a scheduled trip. The next morning, they spot the suspect attempting to board a train. He leaves a bomb on the tracks and flees again. Takayama orders Sakurai to shoot rock fall sensors to signal an approaching train. The criminal is subsequently apprehended by the public safety force, allowing the duo to return safely. Sakurai then demands additional training for Takayama, which irritates Haruka.

A promise is made to ensure the safety of a specific individual

I Thought It Suited You

The protagonist promises to personally deliver the item to its intended recipient.

A narrative expressing gratitude to the audience

Will You Keep This a Secret?

The protagonist decides to accompany their companion on their journey together

All characters are waiting