Originally posted April 28th, 2015 with the following commentary:
Either Ri-chan is just that mischievous…or Yucchan just keeps setting herself up for these moments.
Yukina: You should still knock louder or something, sheesh. People could be busy with...research or something.
[SFX: Gurk!]
Rie: "Research," eh? But Yucchan, I thought you had no homework this week.
Yukina: It's something I'm looking into for my own benefit, okay?
[SFX: yoink!]
Rie: Let me see~
Yukina: HEY! WAIT JUST A MIN-