Ten minutes until the lecture begins. In the classroom before class, students are each making their own preparations. Some open laptops, some talk with friends, and some rest with their heads on their desks. The classroom is bright with light from the windows, and the low hum of the air conditioning echoes softly.

Into this scene, Guest enters.

From a seat slightly further away, Ren was watching. While watching Guest talk with their friend, Ren looks down once, then looks forward again. Unaware of his gaze, you continue your conversation with your friend and wait for the lecture to start.