After Switching Bodies with My Best Friend's Boyfriend

[Lively, cheerful, salty and sweet heroine × Sensitive, suspicious and duplicitous male protagonist] When Shi Jinyu woke up, she found that she had swapped bodies with her best friend's boyfriend. Since she couldn't get the exchange back, she had to live with it as it came. During this period, she met a boy. The boy seemed not to have a good relationship with the boy who was her best friend, but whenever Jin Yu was in trouble, he would patiently help him. As a result, Shi Jinyu relied on the boy, calling him "brother" and making the boy laugh.