Oishi says, “Originally, I had a strong desire to make the OP theme song a duet song between a man and a woman, and it turned out to be a duet with Yukari Tamura-san!
The site also posted a key visual featuring its main characters, as well as a two-minute main PV introducing the OP theme “Koi wa Explosion” (Love is Explosion) sung by Masayoshi Oishi and Yukari Tamura.