A daily life simulation with your younger sister. Little by little, day by day... You're living alone when your younger sister ends up staying with you. When such an opportunity comes knocking on your door, what kind of brother will you become for...

Just before being destroyed, Demon King Gitra who hijacked the body of the Royal Palace Knight. However, it has lost memory and power. Gitra, who became a human being, is newly named Van and visits the adventurer town of Shuria with his ill-servant...