"Heroes. Mark Demyanchenko" — a special report about conservatory student Mark Demyanchenko. The guy was born with a disability, but has an absolute ear for music and a very brave heart. To the sound of explosions in the ruins of Kharkiv, he played the melody of the song “My Dear Mother” on the guitar. This video spread all over social networks and Mark became recognizable in the world. Famous musicians invite him to their concerts. The 21-year-old guitarist believes in the strength of his native Kharkiv and the victory of Ukraine.