Kou Kadokura, a cyber officer, seeks to uncover the truth behind the tragedy that ended his once peaceful life. A war looms, and the answers he’s looking for are locked away in him... So why can't he remember anything? Unravel the mysteries hidden in his lost memories through this fast-paced mech action game!
One day, our hero is headed home from Akihabara when he's mistaken for a molester. The person accusing him is his childhood friend, Fuyuka Akiyoshi. "If you want me to forgive you, then become my butler!" Recently reunited, these two end up in an unusual relationship as their story begins again...
Our hero used to go to Akiba a lot when he was younger. It wasn't to have fun, but for his little sister's sake. One day, his younger sister is gifted a Christmas trip, and they spend time together as if they're a couple. This is the delightful and touching love story of these two siblings.
Our hero's homeroom teacher is also his big sister, Yaeka. She's popular with the students, but at home, she's a slobbish drunk. There's Maika, an exchange student and Akiba nerd. She's always asking him to go to Akiba with her. But Maika is told to return home. Two love stories are about to begin!