She is best known for her roles in The World of Kanako, Destruction Babies, Drowning Love, The Black Devil and the White Prince, My Tomorrow, Your Yesterday, After the Rain, Farewell Song, Threads: Our Tapestry of Love and Sakura.

Komatsu was born on February 16, 1996 in Tokyo and grew up in Yamanashi Prefecture.

[5] Komatsu made her film debut in The World of Kanako and won numerous Best New Actress awards including the Newcomer of The Year award at the 38th Japan Academy Film Prize.

She starred in the sixth highest grossing Japanese film of 2020, Threads: Our Tapestry of Love.

[11] In March 9, 2024, Komatsu and Suda jointly announced through their respective agencies that they had welcomed the birth of their first child.