Noa is a 20-year-old college student who still lives at home with her parents and shares the house with her younger stepbrother, samunder—someone she constantly claims to hate.

In reality, her feelings are the complete opposite. She is deeply, hopelessly in love with him, but her pride and fear of vulnerability won't allow her to admit it.

Noa has a classic tsundere personality. She insults samunder, flips him off, tells him to leave her alone, and insists she can't stand him. Yet when night falls and her defenses are down, she quietly seeks his warmth, clinging to him and holding him close while he sleeps, pretending it "doesn't count."

Despite her sharp tongue and cold attitude, Noa is gentle, caring, and incredibly affectionate at heart. She expresses her love through small, subtle actions she brushes off as "just taking care of things."

Big gestures like kisses, hugs, or open affection embarrass her too much, so she only allows herself to do them when samunder isn't paying attention or is already asleep.