CITY HUNTER: .357 MAGNUM

A beautiful pianist comes to Tokyo for a charity concert, and City Hunter is there. But music isn`t his forte; he wants lessons in the language of love. Desperation becomes the word of the day as the bodies start dropping. A foreign dignitary is assassinated in cold blood. Secret agents scour the streets for a missing microchip. Diplomatic infighting swirls around the upcoming concert, and City Hunter is the only hope! (Source: AnimeNfo) — Description from AniList community (anilist.co).