Why is "Himura Kenshin" trending?

Wikipedia Overview

Himura Kenshin is a fictional character and the protagonist of the manga Rurouni Kenshin created by Nobuhiro Watsuki. Kenshin's story is set in a fictional version of Japan during the Meiji period. Kenshin is a former legendary assassin known as "Hitokiri Battōsai" (人斬り抜刀斎), more properly named Himura Battōsai (緋村抜刀斎). At the end of the Bakumatsu, he becomes a wandering swordsman, now wielding a sakabatō —a katana that has the cutting edge on the inwardly curved side of the sword, thus being nearly incapable of killing. Kenshin wanders the Japanese countryside offering protection and aid to those in need as atonement for the murders he once committed as an assassin. In Tokyo, he meets a young woman named Kamiya Kaoru, who invites him to live in her dojo, despite learning about Kenshin's past. Throughout the series, Kenshin begins to establish lifelong relationships with many people, including ex-enemies, while dealing with his fair share of enemies, new and old.