The 48 year old champion, the current oldest champion in the sport, has held the title since May 2014, when she defeated Jessebelle Pagaduan in the inaugural title fight. Since then she has distinguished herself as one of the division's leading fighters with defenses against Masae Akitaya, Ayaka Miyao and Saemi Hanagata. Although a veteran she fights like a much younger fighter and is amazingly unbeaten since a 2010 loss to Ji Hyun Park, following which she has gone 7-0-2. That 9 fight unbeaten run has seen Ikeyama take a narrow decision win over Iwakawa, in 2013.
As for the challenger she challenged WBA Atomweight champion Yunoka Furukawa in December 2016, and lost a mjaority decision to the defending champion. Although the loss to Furukawa is her most notable result she did win the OPBF female Light Flyweight title in August 2016 and scored a draw against Kumiko Seeser Ikehara, who went on to claim a world title of her own. Aged 34 the challenger is no spring chicken herself but she will be encouraged by her narrow loss to Ikeyama in theri first bout, back in December 2013.
At the moment no other details of this card have been revealed, though we'd expect at least one other bout of note on the show.