In the initial segment of the Saikyou Series, we delve into the world of Aikawa Jun, also known as Lonely Red. Witness her present circumstances unfold as the saga of strength commences. Jun, deemed Humanity's Strongest Contractor, finds life mundane and contemplates drastic measures. With unparalleled might, she reigns supreme, leading the world to submission. Bereft of adversaries and tasks to undertake, Jun encounters an unexpected emotion - love. Thus begins a profound tale of love that defies human limitations, marking the pinnacle of affection in a narrative of ultimate strength.