binbo taizou
(びんぼ たいぞう)
A character from Kobayashi Yoshinori's manga series, "Obocchama-kun." Also known as 貧ぼっちゃま or びんぼっちゃま (Binbocchama).
He is Obou Chama's friend. He is a son of downfallen formerly-rich family. Because he is incredibly poor, he can only afford the front half of a suit, and he ties strings on his back. Due to his great pride, he tries to wear a decent outfit, at least the front half of it. His catch phrase is "落ちぶれてすまん! (Sorry for coming down in the world!)"
All images having binbo taizou tag have backless outfit tag too. But the opposite isn't true. (E.g. Danbooru post #702990 and Danbooru post #546382)
If you want to use this tag, the image or the artist's commentary must contain his catch phrase, some references to him or a clear element of extreme poverty.