When she was 13, her mother grabbed the opportunity of migrating to Japan with her after a friend of theirs, whose mom works in an agency, told them about the support offered to women who have half-Japanese children.

[2] She then starred in the adaptation of one of Wattpad's most read stories, The Four Bad Boys And Me, in which she played the main role named Candice Gonzales.

The series was co-starred by fellow PBB alumna Maymay Entrata and co-Rise Artists Rhys Miguel, Jeremiah Lisbo and Aljon Mendoza.

[12] On the same year, Oinuma played the role of Megumi in Love at First Stream, together with Jeremiah Lisbo and their fellow casts, Daniela Stranner and Anthony Jennings.

[13] During the "iWantTFC Unwrapped" event held in December 2021, it was announced that Oinuma joins the cast of a new series called Tara, G!

[15] In March 2023, it was announced that Oinuma together with Jeremiah Lisbo and other Gen Z actors will be starring in upcoming series Fractured by Dreamscape Entertainment.

[16] Notes: ^ a One of the Southeast Asia short-film trilogy inspired by the songs of pop trio New Hope Club.