Rearrange

After an automobile accident, Win awakens to find himself in the body of his 17-year-old self again, with a second chance to pursue music and his first love.

Win and Nut grow closer, and a near-confession makes Win's heart race. They also agree to attend a concert together and form a band, with Win as the vocalist and keyboardist while Nut takes on the guitar. However, recruiting the other two members doesn't seem to go as smoothly.

Win and Nut work hard to recruit new members, bringing in Aek as the drummer and Chai as the bassist, to perform Nut's original song in a competition. With the deadline approaching, pressure builds as each member faces personal struggles.

Lin's return makes Win hesitate about the path he's chosen. As someone important from the past shifts the balance of everything Win has built he begins to wonder who he is really trying to change the past for.

Ek nearly quits the band due to his parents' opposition, but with Chai stepping down as leader and Win's heartfelt plea, Ek's family finally gives their support, allowing the four to keep preparing for the contest. However, Nut's father wants him to abandon his dream of music and pursue a study-abroad opportunity.

To find inspiration for their final competition song, the group goes camping in the mountains. From pitching tents to grilling by the fire, their bond grows stronger. By the river, each makes a wish, but soon, an unexpected diagnosis from the doctor changes everything.

Lin confesses her feelings to Nut, and with Win's help, their relationship blossoms. However, troubles plague the band members. Chai and Ek get involved in a fight and are injured, angering both their parents. Nut's health forces him to suspend rehearsals, leading to his father insisting he study abroad.

Lin and Nut's relationship sparks conflict among friends, but Lin reveals that his confession was unsuccessful. Nut already has someone else in his heart. With misunderstandings resolved, Win helps Nut secretly continue rehearsals. During their time together, Nut performs his own song and finally confesses his true feelings.

The band joins a music competition, and despite being diagnosed with a brain tumor, Nut insists on performing with his friends, delivering an unforgettable show. After undergoing surgery, he becomes more certain about his feelings for Win. However, his father forces him to study abroad in England, forbidding him from playing music again. Just then, the band receives an unexpected offer…

The band finally gets their debut and a chance to release their first record. Despite his father's opposition to his music dream, Nut remains determined to follow his path. Under the bright stage lights and the cheers of the crowd, their love song becomes a symbol of the bond between Nut and Win.