The first novel of Ikebukuro West Gate Park by Ira Ishida was published, introducing the story and characters to the public.
The television drama adaptation of Ikebukuro West Gate Park was aired in Japan, boosting the franchise's popularity.
A manga series adaptation of Ikebukuro West Gate Park was published, expanding the franchise into the manga medium.
Announcement of an upcoming anime adaptation of Ikebukuro West Gate Park, creating anticipation among fans.
The anime adaptation of Ikebukuro West Gate Park premiered, bringing the story to a new audience through animation.
Makoto first encounters Takashi, the leader of the G-boys gang, setting the stage for their future cooperation.
A chaotic event where a monkey causes significant trouble in Ikebukuro, leading Makoto to get involved to restore order.
A series of mysterious murders begin, prompting Makoto and his friends to investigate the dark underbelly of the city.
Makoto infiltrates a drug ring operating in Ikebukuro, leading to its exposure and dismantling.
Takashi faces a challenge to his leadership of the G-boys, with Makoto playing a key role in the resolution.
Takashi is murdered, causing turmoil within the G-boys and deeply affecting Makoto.
Makoto assumes leadership of the G-boys, marking a new era for the gang and Ikebukuro's youth.
Makoto investigates a serial killer targeting young women in the area, uncovering dark secrets.
After solving multiple conflicts and crimes, Makoto helps restore relative peace to Ikebukuro.
