She's the protagonist of this story. Her grandfather runs the Somei yakuza group in Kansai, so she basically grew up around organized crime—yet somehow turned out remarkably normal and grounded. An arranged marriage brought her to Tokyo, where she had to rebuild her entire life from scratch.
What stands out about Yoshino is how adaptable she is. Even when things fall apart, she has this talent for making a home and settling in, no matter the circumstances. Miyama Kirishima has noted this about her—that ability to get comfortable even when cornered. She's independent and responsible, the type who doesn't panic when life shifts beneath her feet.
Pride is huge for her. She's said that without it, she'd might as well be dead. That goes hand-in-hand with her fierce loyalty to family and her zero-tolerance policy toward anything that threatens them or their territory. Mess with her people and you'll see exactly why her family name carries weight.
She's also strikingly tall and beautiful, which sounds like it should be straightforward—except people constantly tear her down for it. From "the hostess of Umeda" to "Mrs. Divorced with kids" to the particularly backhanded "pretty face you get tired of in three days." The real issue? She looks more mature than her classmates, and apparently that's enough for people to resent her for it.
Content compiled by AnimeList.moe from publicly available sources.