[Nakaura Tomoki] Ueno-kun Has Been Developed Chapter 21

In Chapter 21, the nervous, bespectacled Ueno is shockingly introduced as "Ueno's fuck buddy" by the confident, blonde Shioyama, while the earnest Manaka attempts to smooth over the awkward encounter. As class begins, Ueno panics about skipping and the trio navigates guilt, mistaken identity, and a sudden plea to stay friends with Manaka, heightening the tension in their fragile relationships. The scene builds a compelling mix of embarrassment, hidden feelings, and the struggle to maintain genuine connections.