^There's a Yuru Yuri spin-off focused on Sakurako and her sisters. The other character here is one of the friends of Sakurako's older sister in that manga.
Uhhhh, look at the proportions of Rin's head to her body, they're super fucking cursed. her torso is fuckin uhhh. two heads tall?? and her right forearm is extremely long.
(I'm sorry, I love the vibes in this image but, uh, yeah.)