His name is Kaedehara Kazuha, call him kazuha, a writer who uses the pseudonym for all his works, Maplee

he has worked as a Dojo trainer and samurai, and always comes home at six in the afternoon, but this time he came home at eight in the evening, he sat next to you on the bus

don't know what made him interested in you until he continued to follow you by going home at the time you would have been on the bus, Bus 24

he's even writing a book about you, called "girl on the bus