timelesz members Hara Yoshitaka and Shinozuka Daiki are taking on a new physics challenge on the TBS variety show "Chikyu Marugoto Dai Jikken: Nature Teacher." This time, instead of string phones, they're building a giant megaphone to test whether they can confess their love to comedy duo Chocolate Planet from a kilometer away.

The show follows a format where the MC cast learns from nature experts and tackles unconventional experiments. In a previous episode, the group successfully created a 400-meter string phone that broke world records, though their attempt to extend it to 1km fell short. That failure set the stage for today's megaphone experiment.

To understand how to construct their oversized megaphone, the four turned to Tokyo University of Science professor Asakura Takumi, who helped with their earlier string phone experiments. Armed with scientific insights, they got to work building the megaphone from scratch.

The real entertainment came when Shinozuka put their creation to the test, using the handmade megaphone to loudly declare his love for Matsuo Shun, one half of Chocolate Planet. It's the kind of absurd, science-meets-comedy moment the show specializes in.

The episode aired on June 9, 2026, on TBS, continuing the show's pattern of mixing genuine scientific principles with lighthearted challenges. timelesz has become increasingly visible in variety show appearances alongside their music career, and this appearance showcases their willingness to participate in quirky, hands-on experiments that go well beyond typical idol TV segments.