She studied at the Juan Sebastián Bach Music School in Valdivia, where she specialized in violin, becoming a teacher of this instrument.
[17][18] On 22 September 2018, at the Gran Arena Monticello,[19] Asenjo won the WBA Latin American super flyweight title, defeating Panama's Carlota Santos by technical knockout in the third round.
[20] On 2 September 2019, the WBA stripped the belt from Asenjo, due to weigh-in problems in a fight held in Mexico.
[23][24] On 19 April 2020 Asenjo was set to fight to regain the WBA super flyweight world title against Mexican Maribel Ramírez, but due to the pandemic, the bout was cancelled.
[14] In June 2022, Asenjo won the IBO super flyweight world championship after defeating American Casey Morton in Paris.