In 2024, she became the first Japanese face of Bvlgari’s "Serpenti" watch line , representing elegance and rebirth. Street: She simultaneously signed a deal with Uniqlo for their "Heattech Winter 2025" campaign, where she famously said, "I wear this to film in Hokkaido; it's not sexy, but it works." Quirky: Her most unexpected partnership is with Nissin Cup Noodles . Her commercial for "Curry Cup Noodle" went viral for its absurdist humor—she plays a salaryman trapped in a vending machine. Critical Analysis: Is the Hype Justified? To write a balanced article, one must address the critics. Some industry veterans argue that Megu Hayasaka’s rapid rise is due more to timing than talent. They point out that her singing voice (she released two singles in 2023) is "pleasant but unremarkable" and that her social media presence sometimes overshadows her film work.

Furthermore, her box office numbers speak for themselves. The three films she headlined in 2024 grossed a combined ¥7.2 billion (approx. $48 million USD), making her the sixth-highest-grossing actress in Japan last year. Despite her openness online, Megu guards her private life zealously. She is famously single (having stated in The Green Room that she is "married to her script stack"). She lives in a modest two-bedroom apartment in Setagaya with her rescue cat, Kabuki .

However, director Ryusuke Hamaguchi ( Drive My Car ) disagrees. In a recent interview, he stated: "Hayasaka-chan has what we call 'me no koe'—the voice of the eyes. She can perform a character's entire backstory without a single line of dialogue. That is not timing; that is training."