S Friend Complex summary:

Falling in love means you lose, but, you'll unexpectedly get excited. A romantic comedy of tactics, eros, and excitement between two people who can't be honest starts now. Noa is a female university student who has a younger brother who's a fit model, and is generally accepted to have an intense brother complex. But she got drunk and in the moment ended up doing it with Ko Honda, the popular number one model she sees as the enemy!?