Haru served as the Guardian of the Armament's Seventh Generation .
After Todokin's recruitment into the Armament, Haru took it upon himself to act as a mentor to him.
- Sasaki vs. Enjou Kazumasa - Won 
- Sasaki vs. Ikeda Ryou - Won 
- Sasaki vs. Fushimi Noboru - Won 
- Sasaki vs. Oosumi - Won