Ritsuka and Soubi are attacked by another duo sent by The Seven Moons, Sleepless, who carry a letter from the teacher of the Fighter school that has information about Seimei's death. Ritsuka and Soubi fight and defeat Sleepless, and Soubi takes the letter and gives it to Ritsuka. Ritsuka finds out from Sleepless that not only did Seimei attend The Seven Moons' Fighter school, he was the top student. Later, Ritsuka opens the letter only to find a string of letters and numbers, and he has trouble sleeping because he can't stop thinking about Soubi.