Idol Sister

Arata inadvertently touches "Hermes Apocrypha," Lilith's Grimoire. Suddenly, he is enveloped by a bright white light, and a girl appears before him. She calls herself Lilim, and treats both Arata and Lilith as her parents. At the same time she appears, something changes in the world. The forbidden Eternal Library awakens.

A huge sphere suddenly began to emit a mysterious spiritual wave to the Tengu City that should have regained its peace. A mysterious, beautiful girl showed up at the same time. Silently, what is her purpose to cast her line of sight to Shidou and the others? The real purpose is...?

Nishi is a loser who has a crush on his childhood girlfriend. After an encounter with the Japanese mafia, he journeys to heaven and back, and ends up trapped in an even more unlikely place.

After blessing software announced their first work, Eriri and Utaha leave the group to join popular creator Akane Kosaka in developing a major game called Fields Chronicle. Meanwhile, Tomoya and Megumi join hands with their new members and various other parties to produce their new game. What will become of Eriri and Utaha’s major work? Will the relationship between Tomoya and Megumi change? And what will be the ultimate fate of blessing software’s new game?

As the perpetually lecherous Ataru and his friends prepare for a carnival at Tomobiki High School, they gradually realize the days are literally repeating themselves. Any effort to break the pattern dumps them back where they started.