[Machine Translation] Knapp returns to his old island during the summer vacation of his military school. However, he is frustrated that his former teacher Atty, whom he has met again, does not pay attention to him. Then one day, his enemies, the "Colorless Faction," attack the island. Atty, who is fighting against them, is forced to fight an unexpectedly difficult battle... The latest novel of the famous "Summon Night" is now available.