I was expelled as the world's strongest hero PT, and I resolved to rise up according to the template and take revenge! ...Or so it should have been, but for some reason the hero followed me!? ~Don't you hate a childhood friend hero (feminized × yandere × mentally unstable × nymphomaniac = pervert)?~

"The Burden of the Strongest Hero Party" The protagonist of this story is: "Shinnosuke Noborukawa" He was added to the world's strongest hero party, [Sword of Hope], simply because he was the "childhood friend of the hero." Shinnosuke wasn't particularly weak, but because his party members were all incredible, and he still didn't possess a single skill (or rather, he had one but didn't know what to use it for), he was inevitably compared to others and treated as inferior. Yet Shinnosuke persevered. For his childhood friend, "Seren Rubes"... No matter what treatment he received, no matter how he was treated, no matter what insults or slander were thrown at him—as long as he could be with "that childhood friend"—that reason alone was enough for him to keep going. He handled all the troublesome procedures, of course. He took care of every chore and errand, and whenever any problem arose, he quickly dealt with it, responded, processed it, and cleaned up after it. He looked after the party members' health and never neglected aftercare. Despite it being each member's own responsibility, he even stayed up nights to handle disputes and settle conflicts. However, one day, the "PT Leader" told Shinnosuke something shocking... "As of today, you're out of the party!" It made no sense... I'm being fired...? Why? How? What's the reason? Shinnosuke was bewildered by this sudden turn of events. As if to add insult to injury, the other members gave him spiteful farewells and forced words of consolation. Furthermore, with the "Magic Item (recording device)" handed to him by the PT Leader, he was plunged into despair. "Today... I'm... firing Shin-chan..." It was unmistakably the voice of his "childhood friend"... Shinnosuke could barely stand anymore. Before he knew it, he had left the party and was wandering alone through a different town. After some time, a thirst for revenge began to boil up within him... (How dare they—I'll make every single one of them regret this!!) Shinnosuke swore revenge on everyone, including his "childhood friend," but a few days later, something unexpected happened. "I found you, Shin-chan♪" Unbelievably! The childhood friend who had fired him came chasing after him! And she had transformed into a female form...