Regret

In the academy, all students are given facilities such as their own dormitories.

Fuyuki who is now separated from her friends feels lonely, not to mention the sadness she felt when she lost her first love, Kaori.

Fuyuki is haunted by guilt for killing his loved ones, depression, loneliness, fear to make friends with others.

He became a very desperate child.

....

"What's this?"

"The kid we put into the academy yesterday has below average ability."

The higher-ups began to doubt Fuyuki's abilities and strength, they thought... He wasn't the kid he was yesterday.

All the friends in his class were also reluctant to approach Fuyuki. He's a gloomy, abnormal kid, they thought.

It was the past in Rakugaki that was so dark.

Then... One day, Fuyuki slowly figures out how to escape from the dorm.

He wants to meet hiyori and mawaru.