[1] Morita took up karate in early elementary school, after being pressured to do so by her father who was a Kūdō instructor, in order to lose weight and begin socializing.
Morita avoided all extra curricular activities and after-school clubs from that point on and only took up shoot boxing at the age of 16 in order to lose weight.
[6] Morita faced the 2015 Shoot Boxing Girls S-Cup Japan Tournament winner Mio Tsumura at SHOOTBOXING Young Caesar Cup in Hanayashiki act.2 on June 18, 2016.
[10] Morita faced Yu Sakamoto at Shootboxing 2017 Young Ceaser Cup Central #18 on October 2, 2016.
[13] Morita faced Tan Ka Lee at Shootboxing 2017 Young Ceaser Cup Central #19 on May 9, 2017.
[16] Morita next faced Nana Okuwaki in a non-tournament bout at SHOOT BOXING Girls S-cup 2017 on July 7, 2017.
[18][19] Morita returned to J-NETWORK to face Hinata Terayama in the finals of the Mini Flyweight tournament on September 24, 2017.
[23] Morita challenged Mio Tsumura for the Shootboxing Women's Strawweight (49 kg) championship at SHOOT BOXING 2018 act.1 on February 10, 2018.
[26] MISAKI took part in the 2018 SHOOT BOXING Girl's S-Cup World Tournament, held on July 6, 2018.
[27] Although she was able to over Isis Verbeek, her quarterfinal opponent, by majority decision, MISAKI nonetheless lost to the eventual tournament winner Jleana Valentino in the semifinals.
[28] MISAKI rebounded from this loss with a unanimous decision victory over Ratchapon Poniramon at Shootboxing 2018 Young Ceaser Cup Central #23 on September 23, 2018.
[29] MISAKI made her first J-NETWORK Women's Mini Flyweight (-48 kg) Championship defense against Hinata Terayama at J-Fight & J-Girls 2018: Act 4 on November 18, 2018.
[35] These two victories earned MISAKI a place in the 2019 Shootboxing Girl's Japan S-Cup title, as she was booked to face Miki Kitamura in the tournament semifinals on July 21, 2019.
[42] Morita improved her win-streak to three consecutive victories with a unanimous decision triumph over Miyu Sakata at SHOOT BOXING Girls S-cup2021 -Road to Tournament- on July 29, 2021.
[43] Morita faced Suzuka Tabuchi for the inaugural Shootboxing Women's Atomweight (-46 kg) title at Shoot Boxing 2021 Champion Carnival on December 26, 2021.