Demon Flowers - Kuruizaki No Hana: v. 2 by Mizuki Hakase
Masato and Nao are captured by demons. They take them to a big mansion, their secret base of operations, deep in the mountain. Masato confronts Gold, the head of demons' society called the 'family'. Just as Masato is about to be executed, Ushitora enters and saves him.