Langaku Launches Takadanobaba Quiz Ads ↗
Mantra will run an out-of-home advertising campaign for its manga-based English learning app Langaku in Takadanobaba from October 28 to November 24, 2026. The quiz ads will feature iconic lines from BLEACH, DEATH NOTE, HUNTER×HUNTER, and NARUTO in weekly rotation, introducing “manga × extensive reading in English.”