Mami Nanami: “Su Yu, you don't love me at all, do you?”
Su Yu: “I cheated on you without even breaking up with you, and you still say I don't love you???”
Mami Nanami: “…”
“My dad keeps nagging me to get a boyfriend lately.” Eriri dropped a very unsubtle hint.
Su Yu: “Then let me be your dad. I won't nag you.”
Eriri cursed him out: “*******”
Mai Sakurajima: “Su Yu, why do you always go after older married women?”
Su Yu: “Rather than watch little girls grow up, I'd rather have a heart-to-heart with an older woman.”
P.S. This is a crossover slice-of-life featuring characters from Rent-A-Girlfriend, We Never Learn, Kaguya-sama: Love Is War, The Quintessential Quintuplets, Rascal Does Not Dream, Oregairu, and a range of other series.
