Sixteen-year-old Hachiman Hikigaya, after a strange memory emerged, has a new perspective on life. "Everyone is born at different starting lines." "Physical strength, brains, looks, emotions, and then money." "I deeply agree with the idea of ​​simply categorizing people as winners or losers." Determined to be a winner, he leaves behind Sobu High School and the Yukinoshita sisters and enlists in the arms of the private Hyakkaou Academy. Here, he'll participate in the game of power and gain. "Life is nothing but fame, money, power, and sex—I want them all!"... Jabami Yumeko: Hikigaya-kun, let's fall into the abyss together. Momobami Kirari: Hachiman, the Hyakko family needs you, I need you, please be my husband. Momobami Ririka: Do you like your sister instead of me? Juraku Sachiko: Be my dog~ Yukinoshita Yukino: Come back. Hachiman Yukinoshita Haruno: Don't overthink it, I'm doing this for Yukino! ...(Even if you haven't watched Kakegurui or Oregairu, you can watch it without any problems.)

As the Queen of Succubi, I appeal to the entire demon world for help: To corrupt a 17-year-old boy, I have transformed into the Otherworld Welfare System, attached myself to him, and begun my seduction! Dear host, you possess the ability to transmit your innermost desires to beautiful girls. Please have Yotsuya Miko... "Ripple!" "These are ripples that convey my will and enlightenment! The hymn of humanity is the hymn of courage!" Beep! You have awakened your seductive nature, making Goto Ichiri yours... "Do you believe in gravity?" "Human encounters are meaningful. If you want peace of mind, follow me." Beep, you can now stop time. The limit is five seconds. If you want more time, I command you to... Shinomiya Kaguya... "Enough! Five seconds is enough to dominate the entire world!" "And then I'll kill you, you bastard, in less than a second!"? Gazing at the invincible figure approaching, his fist piercing the sky, and behind him, the determined faces of the heroines who have overcome their fate, completed the trials, and grown. There were even many Taiman Ninjas, Magical Girls and the beautiful superpowered girl Succubus Queen whose lower abdomen trembled with phantom pain. Can reconciliation be achieved?

Mu Xiaoxiao turned into Doraemon - the limited edition of the other world. He could get secret props by fulfilling girls' wishes. For the generous rewards of the system, he decided to take this job seriously. However, the heroines in this world are not normal. "Unrivaled power! Wealth that rivals a country! The power to control a country!" Mu Xiaoxiao said passionately, "Whatever you want, I can help you realize it!!" Sakurazawa Tomomi's big eyes flashed, "So amazing, can you really do anything?" "Go ahead, tell me your wish!" Mu Xiaoxiao folded his arms, full of prestige. "I feel a little uncomfortable with the swelling, Mu Jun, can you help me?" "..."