Check out this fascinating article By N.K. Jenisin
"One of my favorite manga is a shoujo (girls’) comedy serial called Yamato Nadeshiko Shichihenge (YNS), sold in the US as The Wallflower. Now, the Japanese title has a more complex meaning than a phrase like “the wallflower” can encompass, in part because it’s referencing a phrase that’s fairly esoteric to Japanese culture — the idea of quintessential Japanese womanhood, or the yamato nadeshiko spirit. But the story itself is fairly simple: four hot guys are offered the chance by an eccentric millionaire to live in a stunning mansion, rent-free — but in exchange, they have to transform her ugly-duckling niece Sunako into a “real lady”."