Jiyun is the forth eldest Tachibana sibling; he is the second boy.
Yujin has spiky black hair, a green t-shirt that become a lighter shade while on the shoulders, black shorts and shoes with knee-high white socks. While on his own reality show with his family, he wore a navy swimsuit.
The second youngest, he grow up with his siblings in an apartment while also having a mom that slept with many men. He watches over his younger brother, Takahiro, with the rest of his siblings on account of his mom's neglectfulness.