Satoshi is a fragile research student who immerses himself so much in his research, that he often forgets to eat and sleep. He has a pet-master relationship with Izumi, his junior at the same lab, a relation...

Sonokawa Tsubasa - 15 years old. A bubbly, energetic girl who's called 'stalker' by a lot of her classmates because she chases after the guy she wants relentlessly. After getting rejected by an upperclassma...

Kanna, who works at a classical music office, has never felt strongly about anything and her relationships with men never go well. However, the moment she heard the pianist Narusawa Kai play Rahmaninov's son...