Tetsuko Arisugawa

The protagonist of Hana to Alice: Satsujin Jiken. She has a carefree personality, and tends to jump into things without thinking.

She transfers to a new school, where something mysterious seems to have happened last year in her class. Annoyed at the cryptic way her classmates talk about the event, she decides to get to the bottom of the truth herself, meeting Hana, her shut-in new neighbour, in the process.