Oh is a nerd who is considered the school's biggest loser. He hates the school because he is often bullied and mocked by his peers who call him Mushroom. Oh is primarily bullied by Copper, In, and their gang of bullies. However, even though he hates the school there is one person who motivates him to go to school every day and that is Peach, the school's prettiest and kindest girl. Sadly, Peach is dating Copper.

Meanwhile, Sun is the new kid at school. Due to unlucky circumstances he becomes friends with Oh. With Sun being friends with the school's loser he is also picked on by Copper and In. But something about Sun makes In feel different.

Can the school's biggest nerd end up dating the popular girl? Can a bully fall for the new kid?

A five-episode anthology that serves as a continuation of the stories of Pick and Rome (Secret Love: Puppy Honey), In and Sun (My Dear Loser), Tee and Mork ('Cause You're My Boy), Kao and Pete (Kiss Me Again), and Arthit and Kongpob (SOTUS).

In 1915, Rati returns to Siam and finds connection with Thee, the heir to a wealthy and powerful family, which seeks to sabotage the relationship.