"Mayumi Nishikino is one of the main characters in the Japanese manga series ""Because It's Love"". She is a 24-year-old woman who works as a kindergarten teacher and lives a simple but happy life.

Mayumi is an attractive young lady, with shoulder-length black hair, big brown eyes, and a friendly smile. She is usually seen wearing casual clothes, such as jeans and T-shirts, and looks very comfortable and relaxed in her own skin. She is also known for her sweet and caring personality, which makes her a beloved teacher among her students and colleagues.

Growing up, Mayumi had a difficult childhood due to her parents' divorce. Her father left the family when she was young, causing her mother to become depressed and distant. Despite all the hardships, Mayumi managed to stay positive and hopeful by reading romance novels and dreaming of finding true love.

Mayumi's life changes when she meets the handsome and charming bartender, Ryosuke Tsuzuki. Ryosuke is a regular customer at the bar where Mayumi goes after work, and the two quickly develop a strong attraction to each other. Although Ryosuke is a bit of a playboy, Mayumi can't help but fall for his charms.

As Mayumi and Ryosuke's relationship evolves, Mayumi finds herself facing new challenges and discovering more about herself. She learns to stand up for her own needs and desires, even when they conflict with Ryosuke's. She also learns to trust her own judgment and not let others' opinions sway her.

Overall, Mayumi Nishikino is a complex and interesting character who embodies the themes of love, perseverance, and self-discovery in ""Because It's Love"". Her story is relatable and inspiring, and readers are sure to root for her success in all aspects of her life."