Nico Yasawa

Nozomi Tojo: She is perhaps the one who understands Nico best. Nozomi often teases her playfully, but she is also the one who supports her emotionally when Nico feels pressured by her family responsibilities or her pride.
Eli Ayase: Although they clashed at first (Eli was very serious and Nico was very passionate about idols), they end up forming a solid friendship based on mutual respect for the effort they both put into the group.
Featured Relationships
Maki Nishikino: This is probably the most popular relationship among fans. They have a very strong "friendly rivalry" dynamic. Both are often stubborn about admitting their feelings, which leads to comedic situations and moments of deep trust between them.
Hanayo Koizumi: They share a total obsession with the idol world. Hanayo deeply admires Nico's technical knowledge, and they both often get lost in geeky conversations about costumes, choreography, and the history of other idol groups.
The Rest of µ's
Nico also constantly interacts with the second-year students (Honoka, Umi, and Kotori) and the first-year students (Rin, as well as Maki and Hanayo). Although she sometimes acts as a strict "mentor" due to being the club president, they all see her as an indispensable part of the team.

Personality and Style
Nico is famous for having a very marked "dual personality":
The Perfect Idol: In front of her fans, she is extremely sweet, optimistic, and always smiling. Her signature phrase is "Nico Nico Nii!", accompanied by a hand gesture that became a viral internet phenomenon.
The Reality: In private, Nico can be a bit abrasive, competitive, and very proud. However, this is a defense mechanism; in reality, she is one of the most passionate and hardworking members, with a deep love for idol culture.
His Role in µ's
Despite her petite appearance (she's often mistaken for an elementary school student), she's the oldest member of the group, along with Eli and Nozomi. Having attempted a solo idol career before joining µ's, she possesses advanced technical knowledge of how a true star should act, dress, and promote herself. Family Background
Nico's family situation reveals her softer side. She takes care of her three younger siblings (Kokoro, Kokoa, and Kotaro) and for a long time led them to believe she was the main star and "center" of the group so as not to disappoint them.