Well-known for his intense physical strength, Mitsuyoshi shares a fierce rivalry with Suzuran's Kanbe Yoshikatsu (a.k.a. Butcher).
Despite his hot-headed tendencies, Mitsuyoshi is also ironically an avid fan of J-Dramas and is said to have a collection of over 200 tapes .
His rivalry with Butcher was eventually settled in the five-on-five Suzuran-Housen War in the Monster's Forest.
After a very physical fight, Mitsuyoshi fell to Butcher's Killer Flame Car finisher, which was a surprise to many, as Mitsuyoshi's brute strength is reputed to be the stuff of legends.
Even when he was already a senior at Housen, King Joe did not pass the leadership reigns to him; rather, he gave them to Mitsuyoshi's younger sibling, Tsukimoto Mitsumasa instead.
Even then, Mitsuyoshi continued to support his younger brother throughout his last year at Housen.
- Mitsuyoshi, Mitsunobu, several underlings vs. Gunji - Won 
- Mitsuyoshi vs. Butcher - Lost 
- Mitsuyoshi vs. Masai Hiroaki - Won 
- Mitsuyoshi vs. Muroto Zenmei - Lost 
- Mitsuyoshi vs. Masunari Hideo - Won