Omiya gets drunk and stuck in a hole in a wall. He tries getting out, but can't... It's then that he hears a man's voice. He begs for help, but the man, instead of heeding his pleas, sticks his cock up his ass. Omiya can't fully grasp what's going on, but the pleasure he feels intensifies, until he climaxes. As he processes his orgasm, the old man leaves, and a new cock comes by... The cycle repeats, as Omiya sinks deeper into pure carnal bliss...

Ren Sawabe is a caring person that everyone loves. One day, two younger students that he's friendly with invite him to their room and suddenly start violating him. At first, he desperately fights back, but when he's roughly fucked in the mouth and ass, he quickly drowns in a maelstrom of pure ecstasy.

Haruno Kasumi and Haruno Ayato are related, however kasumi is a girl older than him, one day Ayato declares to him and promises that when he enters the same school as kasumi they will be more united, so they agree to make that happen, shortly after Ayato visits a porn website that was recommended to him, Ayato begins to become addicted to the content of some videos where a girl seems to look just like kasumi, however the situation will take an unexpected turn when discovering the truth behind everything….

Following the Heath Oslo incident, the existence of the US-Japanese anti-terror organization CIRS has become a matter of public knowledge. CIRS has been rebuilt from the ground up, and its most covert functions spun off to a new agency: SORD (Social Ops, Research & Development). The goal of SORD is to train a new generation of operatives to defend the country against future threats. To that end, the organization has established a series of schools up and down the country. Mihama Academy, more-or-less left to rot after its abrupt closure, has been given new purpose as one such 'specialist training school'. It now entrusts the misfit girls who attend it with guns and live ammunition. No matter how much life grinds them down, what future awaits these girls, who've themselves chosen the path of the gun?