Chapter 1 Chikage Usami is an honor student...?

Chapter 1.5 Twin Talk Episode 1: And Their Crushes are…?

Chapter 2 The nail that sticks out 'too much' does not get hammered down?

Chapter 3 Try to figure it out...?

Chapter 3.5 Twin talk 2: The person each other likes...?

Chapter 4 The one that was wasting your time solving was....?

Chapter 5 Both Twins at Once...?

Chapter 5.5 Twin talk (3): Pre-date preparation?

Chapter 6 Usami Hikari is a genius...?

Chapter 7 Hikari's first date is...?

Chapter 8 Various kinds of love...?

Chapter 8.5 Twin talk (4): From tomorrow on...

Chapter 9 Past and present

Chapter 10 What if the poles flipped...?