The intoxicating charm of a flirtatious art school classmate pulls a reluctant love cynic into a friends-with-benefits relationship.
Days after a heart-fluttering encounter with a charming man, Yu Na Bi bumps into him again. This time, she's formally introduced to Park Jae Eon.
As Na Bi wonders whether Jae Eon only acts friendly toward her or also to other girls, she has a racy dream about the two of them in bed.
A cold, some jealousy and a slight misunderstanding drive Na-bi and Jae-eon further apart before bringing them closer than ever before.
Na-bi's attraction to Jae-eon is enough to momentarily quiet her concerns about their intimate relationship - until a rude awakening sets in.
Sick of Jaae-eon's ways, Na-bi ends things with him. Oh Bit-na makes a drunken confession. Yun Seol-a approaches Na-bi on campus.
Na-bi visits her hometown, where she sleeps out in her aunt's studio and enjoys the outdoors with Yang Do-hyeok. Jae-eon feels Na-bi's absence.
The students arrive at the guesthouse for a group retreat. Na-bi tries to keep a distance from Jae-eon, who keeps his eye on her and Do-hyeok.
Do-hyeok surprises his childhood crush with a sweet confession. Na-bi visits a gallery with Jae-eon. Yun Sol gets honest about her feelings for Seo Ji-wan.
Afraid to lose Na-bi, Do-hyeok shows up in front of her building -only to see Jae-eon by her side. Sol allays Ji-wan's fears about their relationship.
Na-bi scrambles to recreate her sculpture days before the exhibit. Staying true to his word, Jae-eon bids farewell to his butterflies.
