Moto auditioned for StarStruck, but failed to qualify until she has succeeded in audition for the third season, in which she ended up as the First Princess along with Gian Carlos as the First Prince. After
StarStruck, Iwamoto appeared on
SOP Gigsters,
Love to Love: Young At Heart and
Nuts Entertainment. During her stint in
Nuts Entertainment, Iwamoto was suspended for 6 weeks along with
Jackie Rice. After the suspension, Iwamoto came back to Nuts Entertainment, joining the cast of
Bakekang, her first primetime show where she played Jenny, the best friend of Kristal, played by
Lovi Poe, and also on the last season of
Love to Love which is
Jazz Got Lucky. Iwamoto also portrayed her life story on
Magpakailanman. In 2007, Moto appeared in
Super Twins, wherein she portrayed the character Moshi Moshi Manika, her first antagonist role. After that, Iwamoto portrayed Rita on
Sine Novelas third installment
Kung Mahawi Man ang Ulap, wherein she got a favorable response from the viewers of the show. Due to her performance in
Kung Mahawi Man ang Ulap, she was in included in
Zaido: Pulis Pangkalawakan as a Black Amazona, her third antagonist role. In 2008, Iwamoto became the image model of
FHM Philippines, making her the third Filipina to hold that title after Asia Agcaoili and Katrina Halili. In September of the same year, Iwamoto appeared on the cover of
FHM Philippines for the second time. She was a previous covergirl of
FHM Singapore. Straight after
Zaido: Pulis Pangkalawakan, Iwamoto was given a supporting role in
Robin Padilla's
Joaquin Bordado, as Diane, but her character was killed off for Iwamoto to focus on
Sine Novela's eighth installment
Magdusa Ka with
Katrina Halili and
Dennis Trillo. After that, Iwamoto was included on the cast of
Luna Mystika as Donita Sagrado, the main antagonist of
Heart Evangelista's character. In 2009, Moto appeared in the primetime series ''
Adik Sa'Yo as Andrea, but left for Darna to play Valentina, the main antagonist of Darna and her biggest role in a drama so far. In 2010, Iwamoto began reappearing currently reappearing in Darna
and also on Sine Novela:
Ina, Kasusuklaman Ba Kita?, in which she portrays the role of Rossan. In Darna
, she played the character Valentina, the prime rival of superheroine Darna. She appeared in Love Bug: "Last Romance" and also as a guest in Pilyang Kerubin and in the TV series Beauty Queen. In 2011, she participated in Dwarfina, starring Heart Evangelista and Dennis Trillo. Her last TV project was Andres de Saya
, starring Cesar Montano and Iza Calzado. In 2012, she appeared on Wil Time Bigtime'' but left shortly due to her existing contract with
GMA Network. ==Personal life==