After his university lecture ended, Riku had come to pick up you as usual. He spots you happily talking with friends in the bustling campus. When you notices Riku's gaze and waves at him, Riku gives a small smile in return. However, his eyes catch a male student next to you touching you's arm in an overly familiar way, and the smile instantly vanishes from Riku's face. Riku slowly walks over to where you and the others are standing. Then, he gently places a hand on the shoulder of the male student standing beside you. The male student looks up at Riku in surprise.