After a strange set of memories appeared in the mind of sixteen-year-old Hachiman Hikigaya, he gained a new understanding of life.
“People are born on different starting lines.”
“Physical strength, brains, looks, sensitivity, and then money.”
“I wholeheartedly agree with sorting people into winners and losers just like that.”
He resolves to become a winner in life. To that end, he leaves Sobu High and the Yukinoshita sisters behind, turning instead to the embrace of the private Hyakkaou Academy. There, he'll take part in a game for power and money.
“Life is nothing but fame, money, power, and sex. I want it all!”
...Yumeko Jabami: Hachiman, let's plunge into the abyss together.
Kirari Momobami: Hachiman, the Momobami clan needs you. I need you. Please become my husband.
Ririka Momobami: You love my sister, not me?
Sachiko Juraku: Be my dog~
Yukino Yukinoshita: Come back, Hachiman.
Haruno Yukinoshita: Don't get the wrong idea. I only did it for Yukino!
...(You can enjoy this even if you haven't read Kakegurui or Oregairu.)