The pink offensive from the brothers toward Noh Jeong-ui begins. The new MBC Friday-Saturday drama 'Crushology 101', which will first air on April 4th (Friday), directed by Kim Ji-hoon and written by Seong So-eun and Lee Seul, has released its fourth teaser video featuring the brothers who are making different charm appeals to win the heart of Bani (played by Noh Jeong-ui).

The teaser video, which begins with Bani's excited voice saying, "My first boyfriend is...", captures her waving her hand with a bright smile in front of a campus adorned with popcorn-like cherry blossoms in full bloom. It raises curiosity about which brother among Hwang Jae-yeol (played by Lee Chae-min), Cha Ji-won (played by Jo Jun-young), Jo Ah-rang (played by Kim Hyun-jin), and Jin Hyeon-oh (played by Hong Min-ki) she was referring to.

First, Bani defines her relationship with Hwang Jae-yeol as a "debt relationship" and finds herself entangled in unpleasant events with him, pledging, "I should not get involved with such a person," while continuing their bickering chemistry. Like the saying that you grow fond of someone the more you see them, Hwang Jae-yeol's meaningful line, "I really don't know why I'm acting like this," is tickling the hearts of viewers.

Among the strong contenders, Cha Ji-won's overwhelming kindness stands out, and Bani says, "Isn't it unfair for someone to be so caring with that face?" In response, Cha Ji-won gazes gently into Bani's eyes and says, "I don't do this to just any girl," further deepening Bani's dilemma.

Jo Ah-rang, whose flirting ability shines through every line, approaches Bani saying, "Do you remember the title of the work we saw earlier? It was fate," and continues with, "Bani, do you have a moment?" expressing interest and stirring romantic feelings among viewers.

In stark contrast to his charismatic presence, Jin Hyeon-oh's shy confession, "I have never really liked anything other than exercise, except for my first love," ignites the hearts of women. Moreover, Bani's playful teasing, showing she finds him cute, also grabs attention.

As the brothers' breathtaking flirtation continues, viewers are curious about whom Bani will choose among the grumpy fox Hwang Jae-yeol, the supportive puppy Cha Ji-won, the sweet cat Jo Ah-rang, and the bold wolf Jin Hyeon-oh.

The story of the brothers trying to win the heart of Noh Jeong-ui, who possesses a lively charm like a rabbit, will unfold in MBC's new Friday-Saturday drama 'Crushology 101'. After her first love, which became a dark history, Bani finds herself entwined with charming men who suddenly appear in her life. Based on the Kakao webtoon of the same name, which has accumulated 170 million views, it will first air on April 4th (Friday) at 9:50 p.m.

[Photo] Provided

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