In this romantic comedy anime, a shy, socially withdrawn student named Maki Maehara unexpectedly forms a friendship with Umi Asanagi, a popular classmate known by what specific descriptor?

The romantic comedy anime you're thinking of is "I Made Friends (Review) with the Second Prettiest Girl in My Class." This title directly references the specific descriptor for Umi Asanagi, the popular classmate who unexpectedly forms a friendship with the shy and socially withdrawn Maki Maehara. Umi is known among her peers as the "second prettiest girl" in their class, a detail that initially makes Maki conscious of their unlikely bond.

The series, originally a light novel, explores the charming dynamic between Maki, a self-proclaimed loner with a passion for B-movies and video games, and Umi, who, despite her popularity, shares surprisingly similar niche interests. Their friendship begins secretly, often involving "Friday Night" movie sessions at Maki's house, allowing Umi to drop her popular persona and enjoy her true hobbies without judgment. This secret aspect adds a layer of endearing tension to their developing relationship, as Maki grapples with his social anxiety and Umi seeks a genuine connection outside her usual social circle.

Their bond deepens as they find comfort and understanding in their shared interests, moving beyond the initial superficial labels of popularity and social standing. The anime highlights how their authentic connection allows Umi to feel validated for who she is, rather than being constantly compared to others, particularly the "first prettiest" girl in class, Yuu Amami. This focus on genuine connection over social status is a core theme, making their blossoming romance both engaging and relatable.